版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
··················MUSO
TheFilmandTV
PiracyReport2022
Unlockingthevalueofdigitalpiracy
dataforthefilm&TVindustries
FEBRUARY2023
AuthoredbyAndyChatterley,CEO&Co-founder,MUSO
Contents
ThisreporthasbeenpreparedusingdatacollectedbyMUSO.MUSOisatechnologyanddatacompanythatprovidesthemostcompleteviewofglobaldigitalpiracyandunlicensedmediaconsumption.
MUSOhelpsthousandsofrights-holders,tradebodiesandgovernmentstounderstandthetruepictureofdigitalpiracy.MUSOtechnologycanhelpcompaniesprotectcontent,measureandmonetisethepiracyaudience.
ThisdocumentfocusesonthefilmandTVsectors
andpiracytrendsmeasuredacross2022.
MU
TheFilmandTVPiracyReport2022•2
20
Conclusion
09
Section2
PiracybyTitleinthe
0304
FilmandTVindustry
Introduction
Section
1
Theriseofpirated
contentintheFilm
andTVindustry
MU
TheFilmandTVPiracyReport2022•3
Introduction
DigitalpiracyoffilmandTVcontenthas
grownrapidlysince2020.Overthepast
decade,astechnologyhasdeveloped
therehasbeenasteadymoveawayfrom
torrentsanddownloadstowardsunlicensedstreamingwebsites.Theseillegal
streamingsitesoftenhaveuserinterfacestorivalthoseoflegitmateplatforms,and
offerbothnewreleasesandbackcataloguetitlesforfreeglobally.
Unsurprisingly,piracyhasresultedin
immeasurabledamageandlosstothe
entertainmentindustries.However,while
piracyrepresentsamajorthreattorevenue,piracydatapresentsawealthofopportunitiesforbroadcastersandrights-holdersalike.
Aspiracyincreases,sotoodoesthe
amountofdatawhichcanbeusedtobetterunderstandandexploitmarkedtrendsandpatternsofconsumption.Leveragingthis
datacanprovideauniquevantagepointwhichinturncanenabletheproductionoracquisitionofcontentthatcapturestheattentionofthetargetmarketevenmorepowerfullythanbefore.
Whenviewedasawhole,itcouldbeargued
thatthepiracyecosystemisthelargestvideo-
on-demandplatformintheworld.Piracydata
offerstheentertainmentsectoramoreholistic
viewofmarketdemandtohelpdrivemore
valuefortheircontent.
Historicallythisaudiencehasbeendismissed
asnichebuttoignorethisaudiencewouldbe
tomissoutonanopportunitytounderstand
truedemandandtobenefitfromhitherto
untappedpotentialcustomerconversion.
Piracyaudiencesarehighintentandhighly
engagedandmeasuringtheirdemand
uncoversemergingtrendsandnewmarkets,
bothgloballyandregionally.
Section1presentsanoverviewofthepiracy
landscape,measuringvisitstofilmandTV
piracywebsitesandhighlightingsignificant
year-on-yeargrowth.
Section2takesagranularlookatpopularfilm
andTVcontent,analysingsomeofthetrends
observedin2022andrevealingsomeofthe
waystheentertainmentindustryisusing
thisdatatoincreasethevalueoftheir
intellectualproperty.
MUSO
TheFilmandTVPiracyReport2022•4
Section1:
TheriseofpiratedcontentintheFilmandTVindustry
MUSODATAREVEALEDTHAT:
Visitstopiracywebsitesforfilm
contenthavegrownby
36.4%
in2022vs.2021
MUSO
TheriseofpiratedcontentintheFilmandTVindustryTheFilmandTVPiracyReport2022•5
VisitstoFilmandTVpiracywebsites
ThedatahighlightedinthissectionistakenfromMUSO’sPiracybyIndustrydatasetfromitsDiscoverproduct,whichmeasuresvisitstopiracywebsites,includingstreaming,torrent,webdownloadandstream-rippingsites.
MUSOmeasured215billionvisitstopiracywebsitesin2022forallmediasectors,anincreaseof18%comparedto2021acrossallmediaindustries.
VISITSTOPIRACYWEBSITESFORTVANDFILMACROSS2022
•Visitstopiracywebsitesforfilmcontenthavegrownby36.4%in2022vs2021
•VisitstopiracywebsitesforTVcontenthavegrownby8.8%in2022vs2021
•Visitstofilmpiracywebsiteaccountedfor13%ofdemandin2022(27.8billionvisits)
•VisitstoTVpiracywebsiteaccountedfor46%ofdemandin2022(99.6billionvisits)
MUSO
TheriseofpiratedcontentintheFilmandTVindustryTheFilmandTVPiracyReport2022•6
HOWPIRATEDCONTENTIS
BEINGCONSUMED
Overthepastdecadetherehas
beenagradualshiftawayaway
fromtorrents-theposterchild
ofonlinepiracy-tounlicensed
streaming,inmuchthesamewayaslegalconsumptionhasgonefromdownloadstovideoondemand.
In2022,95%ofTVcontentand57.1%offilmcontentwereaccessedvia
unlicensedstreamingwebsitesglobally.
PERCENTAGESPLITBYDELIVERYMETHODFORTVCONTENT2022
VISITSTOFILMANDTVPIRACY
WEBSITESBYGEOGRAPHY
MUSO’sPiracybyIndustrydatasettracksthegeographicaldistributionofvisitstopiracywebsites.The
chartbelowillustrateshowtheUSAisthebiggestmarketforbothfilmandTVcontent.Thismayindicatethatpiracyisdrivenasmuchby
marketingasitisbyaccess,costorlocallegislationforIPprotection.
DEMANDSPLITBYCOUNTRYFORFILMANDTVCONTENT
MUSO
TheriseofpiratedcontentintheFilmandTVindustryTheFilmandTVPiracyReport2022•7
MUSO’sPiracybyIndustrydatasethasbeen
measuringvisitstopiracywebsitessinceJanuary2017.ThecharttotherighthighlightsthatTV
piracywasataconsistentleveluntilamarkeddipduringthefirstCovidlockdown.Thisdeclineinvisitswaslargelydrivenbythelackoflivesportinthisperiod.Sincethen,MUSOhasmeasuredaconsistentincreaseinvisits.
Thisgrowthsince2020hasinpartresultedfromtheproliferationofmyriadsubscriptionplatformsandtheresultantriseofexclusivecontent.Thisbewilderingarrayofofferingsandsubscriptioncosts-especiallyduringtimesofeconomic
hardship-fuelsdigitalpiracyasmoreusers
becomeunwillingtospendonsubscriptions.
THEDEMANDFORTVCONTENTFROMJAN2017
Thedemandforpiratedfilmcontentislargelyinfluencedbythereleaseofblockbuster
movies,andwiththelackofbignewreleasesduringthepandemic,filmpiracyreduced
slgnificantlythroughthesecondhalfof2020.
However,since2021piracyhasincreased
asnewtitlesfinallybecameavailableafter
theirreleaseshadbeenpostponed.Witha
36.4%increasein2022comparedto2021,
MUSOdatasignalsacontinuedupward
trendthrough2023andbeyond.
THEDEMANDFORFILMCONTENTFROMJAN2019
MUSO
TheriseofpiratedcontentintheFilmandTVindustryTheFilmandTVPiracyReport2022•8
Only25.8%offilmandTVpiracy
trafficcomesfromsearchengines,
with66.4%beingdirecttraffic,
indicatingthatasignificant
proportionofusershaveestablishedpreferredpiracysitesforcontent.
Section1:Summary
Piracysawasignificantsurgein2022,witha36.4%increaseinvisitstofilmpiracywebsitesandan8.8%riseinvisitstoTVcontentpiracywebsites.
TRAFFICSOURCEFORFILMANDTV
CONTENTPIRACYIN2022
MUSOdataindicatesthatpiracydemandwillincreaseacross2023.Thisstemsfromtheconvergenceoftwofactors:
1)ECONOMICPRESSURES:Theeconomiclandscaperemainsvolatileandthecostoflivingcrisisisreal.Whileentertainmenttraditionallyboomsduringarecession,thecurrentconditionsofpriceand
platformexclusivitymakesitincreasinglyunaffordable.
2)SUBSCRIPTIONONLYCONTENT:Theproliferationofsubscription
streamingplatforms,witheachhavingtheirownexclusivecontent,
licensingagreements,anddistributionmethods,isforcingmorepeopletoturntopiracytoillegallystreamordownloadtheirfavouriteshowsormovies.Tokeepupwithallthelatestwatercoolertitlesinvolvesmultiplesubscriptions,somethingthatisbothtimeandmoneyconsuming.
Formany,piracyisakeytoremovethepadlockongatedfilmandTVcontent,andwithmorecontentavailableonmoreplatformsthanever
Direct:65.4%
Search:25.8%
Referrals:4.6%
before,piracyisgrowing.Withthisgrowthcomesanunprecedentedopportunitytolearnmoreaboutthisvastaudienceandtheir
consumptiondemand.Thisinsightisbeingusedbyentertainmentcompaniestoincreasethevalueoftheirintellectualproperty.
Social:3.8%
Mail:0.6%
DisplayAds:1.2%
MU
TheFilmandTVPiracyReport2022•9
.
Section2:
PiracybyTitleintheFilmandTVindustry
MU
TheFilmandTVPiracyReport2022•10
PiracybyTitleintheFilmandTVindustry
Section2looksataudience
preferencesbyexamining
consumptionpatternsofthemostpopularpiratedfilmsandTVshowsviewedin2022.
ThedatasharedinthissectionisfromtheMUSODiscoverPiracybyTitledataset,whichmeasurespiracyaudiencedemandforover450,000films,TVseasonsand
episodes.Thedataiscollectedbymeasuringpiracyactivityacrossillegalstreamingwebsitesand
theBitTorrentP2Pnetwork.
Providingdeepinsightsand
understandingofavastandpreviouslyhiddenaudiencehelpsrights-holdersmakedata-drivendecisionsto
increasevaluefromtheircontent.
MUSODiscoverprovidescustomerswithdailydatainsightstooptimisereleasestrategiesandmaximise
revenuesandinfluencewindowingandgeographicreleasestrategies,licensinganddistribution.
METHODOFDELIVERY:TORRENTVS
STREAMINGTECHNOLOGY
Thetorrentnetworkenablesfile
sharingthroughdecentralised
computernetworks,buthasdeclinedinuseduetotheemergenceofbetteralternativeslikeunlicensedstreamingsites.Torrentingnowaccountsfor
only16.5%offilmpiracyand2%
ofTVpiracy,althoughthisvaries
onatitlebytitlebasis.Unlicensed
streamingsitesmimicsthetechnologyoflegitimatestreamingservicesandprovideaHD,one-clickaccessto
thelatestmoviestoconsumers.
PERCENTAGESPLITBYDELIVERYMETHODFORFILMCONTENT2022
PERCENTAGESPLITBYDELIVERYMETHODFORTVCONTENT2022
MARKETSHAREOFPIRACYAUDIENCEDEMANDAMONGSTTHETOP10FILM
TITLES
Spider-Man:NoWayHome202121%TheBatman202213%
DoctorStrangeintheMultiverse
ofMadness202210%Thor:LoveandThunder20229%
BlackAdam20229%
Uncharted20228%
Eternals20218%
TopGun:Maverick20228%
JurassicWorldDominion20227%
Encanto20216%
BlackAdamaccountedfor9%ofpiracy(withinthesetoptentitles)acrossthewholeyeardespiteonlybeingreleasedinOctober2022andwasthemost
in-demandtitleamongglobalpiracyaudiencesinQ42022,garnering
twiceasmanyillegaldownloadsandstreamsasBlackPanther:WakandaForever,accountingfor31%ofthetoptentitles’piracydemand.
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•11
Filmpiracyanalysis
MUSOtracksdailypiracydemandforover100,000filmtitlesfromevery
countryandregionintheworld.Thissectionofthereportrevealstrends
observedacross2022andfocusesonthetoptentitles,whichconstitutesonlyafractionofthetitlesavailableintheMUSODiscoverplatform.
Globally,themostpopularfilmsof
2022wereSpider-man:NoWayHome,TheBatman,andDoctorStrange
intheMultiverseofMadness.
MOSTPOPULARFILMPIRACYTITLESACROSS2022,GLOBALVIEW
MU
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•12
WhenlookingatQ42022inisolation
Avatar:TheWayOfWater2022isthe
thirdmostpopulartitledespitebeing
releasedinthemiddleofDecember.
THEIMPACTOFWINDOWING
STRATEGIESONPIRACYANDREVENUE
TheMUSODiscoverdashboard
allowsfortheanalysisofpiracytrends
overachosentimeperiod,starting
fromthetheatricalreleasedateof
filmtitles.Thisaidstheimpactof
adaptivewindowingstrategieson
piracyandhowthiscanbeleveraged
tooptimiserevenueopportunities.
Totherightisachartthatillustratesthe
piracyprofileacross90daysofatitle’s
firsttheatrical/digitalrelease,providing
adetailedday-by-daymeasurementof
piracyinrelationtoareleasestrategy.
MOSTPOPULARFILMPIRACYTITLESINOCTOBER,NOVEMBERANDDECEMBER2022
THEFIRST90DAYSAFTERTHEATRICALRELEASE,PIRACYDEMANDPROFILE
MU
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•13
BlackAdamandSpider-Man:NoWayHome,whicharehighlightedaboveinyellowandgreen,werebothproducedforabudgetofaround$200million.
ThelargegreenspikeaboveforSpider-Man
showsthepiracydemandon12thMarch2022,threedaysbeforeitshomedigitalrelease
andafteran80+daytheatricalwindow.
Althoughpiracywashighpriortoits
digitalreleaseonMarch12th,mainlylow-qualitycam-ripversionsappeartohavebeenavailable.Thisisaproblemformanyusersbecausecam-ripsoffertheuserabadviewingexperience,creatingmoreofanincentiveforfrustratedconsumerstopaytowatchthesefilmsinthecinema.
InthecaseofSpider-Man,whichachievedalmost$2billionattheboxoffice,thepiracyspikeon12thMarchindicatesthatthe
demandforSpider-Manwasstillextremelystrongevenafteralongwindowandrecord-breakingbox-officetaking.Inshort,thislongtheatricalwindownullifiedtheimpactof
piracy,therebygeneratingmorerevenue.
Conversely,BlackAdam,whichonlyreportedly
grossed$393millionattheboxoffice,had
amuchshorterwindow.Itwasreleasedon
October3rdandbecameavailableonHBO
MaxonNovember22nd.Thehighestpiracy
spikewasrecordedonNovember16thnearly
aweekbeforeitshomedigitalrelease.
Butevenmoresignificantly-piracydemand
forthistitlestillremainsstrong(atthetimeof
writing).Thissuggeststhatalongertheatrical
windowmayhaveconvertedpiracyaudiences
tocinema-goers,ascam-ripqualityisinferior
todigitalqualitypiracy.Inotherwords,
BlackAdammayhavemissedoutongreater
revenueduetoitslimitedtheatricalwindow.
What’smoreisthatBlackAdamsuffereda
significantblowtoitspotentialrevenuedueto
thehigh-qualityleakpriortoitshomedigital
release.Thisallowedthepiracyaudience
towatchitforfreeinhigh-qualityaweek
beforeitsofficialhomedigitalrelease.
Thedataemphasisestheimportanceof
utilisingbothboxofficeandpiracydata
todeviseastrategicreleaseschedulethat
suppressespiracytoprotectprofit.
“Thedataemphasises
theimportanceof
utilisingbothbox
officeandpiracydata
todeviseastrategic
releaseschedulethat
suppressespiracyto
protectprofit”
MU
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•14
Thegeographical
distributionof
filmpiracy
GEOGRAPHICAL
DISTRIBUTIONFORFILM
PIRACYACROSS2022
Identifyingwhichcountrypiracydemandiscoming
fromallowsfilmcompaniestoadjusttheirdistribution
andmarketingstrategies.
Inmanyinstances,piracydataisavailablebeforeany
legalconsumptiondata,enablingamoreagileresponse
withdistributionandmarketingstrategies.Piracydata
oftenuncoversunseenmarketsandpreviouslyoverlooked
territories.Forexample,afilmthatishavingalimitedNorth
Americantheatricalreleasemightshowveryhighpiracy
demandinSwedenorLatvia,whicharmsmarketeerswith
additionaldatatoreachtheseaudiences.
Acrossthetoptenfilmsmostpiratedglobally,theUnited
Stateshasthelargestpiracyaudience-anaudiencethatis
over70%biggerthanIndiainsecondplace.Despitevarious
factorsaffectingpiracy-suchasmarketing,access,price,
culture,releasestrategiesandlegislation-theUSremains
consistentlyhighinpiracyacrossallmediasectors.
MU
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•15
Thegenre
popularityoffilmpiracyin2022
Understandinggenredemandwith
piracyaudiencesprovidesmore
nuancedanddetailedinsight.Certaingenresaremorepopularonillegal
streamingservices-kidsandfamilymovies,androm-comsforexample.Torrentsanddownloads,onthe
otherhand,maybemorepopularin
certainterritoriesforactionadventure
blockbusters,perhapsdrivenby
theneedforownershipofatitle.As
demonstratedinthegraphbelow,
fromaglobalperspectiveadventure
wasthemostpopulargenrein2022.
Drama,whichisnotinthetoptengenreslistedabove,hasthemost
filmtitlesofallthegenresinMUSO’spiracydatawith40,936titles,
butwithcomparativelylesspiracydemandthanothergenres.
NUMBEROFTITLESINTHEDRAMAGENRE
MARKETSHAREOFPIRACYAUDIENCEDEMAND
AMONGSTTHETOP10TVTITLESINTHEUSA
HouseoftheDragonSeries1202217%
ChainsawManSeries12022
RunningManSeries12010
RickandMortySeries62022
MoonKnightSeries12022
BleachSeries12004
TheEminenceinShadowSeries12022TheLordoftheRings:TheRingsofPowerS12022
SPYxFAMILYSeries12022
TheRisingoftheShieldHeroSeries22022
13%12%12%9%9%8%7%7%
6%
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•16
TVpiracy
titleanalysis
Inatimewheretheworldisfastbecomingaglobal
village,popularityofregionalisedTVcontent
hasexplodedgloballyandpiracydatashowsa
markedlyincreasedappetitefortitlesotherwise
unavailableaccordingtoreleaseterritories
orexclusivityofsubscriptionplatforms.
IfwefocusonjustTVpiracyintheUnitedStates-which
accountedfor13%ofallglobalTVpiracy-in2022,
HouseoftheDragonwasthemostpiratedTVshowin
theUS,makingup17%ofthetopten,with74%ofits
piracyoriginatingfromunauthorisedstreamingwebsites.
MU
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•17
ThesecondmostpopularTVshowwasChainsawMan,Series1-an
Animetelevisionseriesbasedon
themangaseriesofthesamename.MUSO’sdatashowspopularityof
animeandmangahasskyrocketedgloballywithpiracyaudiences.
DemandforChainsawManaccountsfor13%ofTVpiracywithinthetoptentitlesacross2022intheUSA.
WhenlookingatQ4inisolation,
ChainsawManisthemostpopulartitleintheUSandthesecond
mostpopulartitleglobally.
Long-runninganimetitleswith
hundredsofepisodes,combinedwithcontinuedincreasedculturaldemandforanime,isresultinginsixoutof
thetoptentitleswithUSpiracyaudiencein2022beingJapaneseorSouthKoreanproductions.
RunningMan,Series1,aSouth
Koreanvarietyshow,continuestoseegrowingdemandamongUSpiracyaudiences,makingitthe
thirdmostpopulartitlein2022with637episodestodate.
Thisispowerful.Piracydatais
uncoveringfastemergingculturaltrendsthatarenotasevidentfromotherdatasources.Happening
bothgloballyandregionally,it
presentsverytangibledataforfastchannelandplatformprogramming,
givingregionalaudiences
contenttheywanttowatch.
Thisispowerful.Piracydata
isuncoveringfastemerging
culturaltrendsthatarenotas
evidentfromotherdatasources.
EPISODICALDEMANDFORCHAINSAWMANOCT-DEC2022
PRODUCTIONINFORMATIONFORTHETOPTENTVSHOWSBYPIRACYDEMAND2022
MU
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•18
Global
geographicaldistribution
WithinMUSO’sPiracybyTitledatasetofallTVtitles,theUnitedStates
accountedfor13%ofallTVpiracydemandandhad54%moredemandthanTurkeyinsecondplace.
GEOGRAPHICALDEMANDFORTVPIRACYJAN-DEC2022GLOBALLY
Genre
demand
WithintheUnitedStates,fantasyandsciencefictiongenresare
themostpopularanddominatethegenreforTVcontent.
MU
PiracybyTitleintheFilmandTVindustryTheFilmandTVPiracyReport2022•19
Usecases
MUSO’spiracydataisbeingwidelyusedacrossthefilmandTVindustries,acrossmultiplecompanies
likestudios,cinema’s,broadcasters,platforms,agentsanddistributorsandacrossmultipleteams
likemarketing,insights,communications,commissioning,businessaffairs,acquisitionsandcontent
protection.Thedataisnuancedandcomprehensive,hereareafewusecaseexamples:
•GATHERINGAUDIENCEDATA:
Insightsintopiracyaudiencedemand
informthecommissioning,acquisition
anddistributionofcontentthatmeets
theactualdemandsofthemarket.
•OFFERINGCOMPETITIVEANDACCESSIBLELEGALSTREAMINGOPTIONS:
Oneofthedriversofpiracyisthelackof
availability.Regionalrightsholdercanuse
unlicenseddemanddatatorevealin-demandtitlesforacquistiontoimprovelegalserviceandaidsubscriberacquisitions.
•FASTCHANNELPROGRAMMING:
Piracydemanddataprovidesarichsourceof
hiddenglobalandregionaltrendsthatcaninformfastchannelprogramming.
•INCREASINGVALUE:
Usingpiracydemanddatarevealsactualdemandforamovieorgenreandcan
beusedtoleverageincreasedpiracyforlicensinganddistributionnegotiations.
•AUDIENCEAFFINITY:
Piracydataprovidesrichaffinitybetweentitles,enablingmarketers
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 2024年社区创业型社区工作汇报(共3篇)
- 学校营销方案宣传(3篇)
- 屋面隔音防水施工方案(3篇)
- 打折赠品营销方案(3篇)
- 新县新店营销方案(3篇)
- 智慧城市展厅施工方案(3篇)
- 桥梁施工方案和技术(3篇)
- 汉字游戏营销方案(3篇)
- 消防管理专项施工方案(3篇)
- 热力管道材料施工方案(3篇)
- 车辆合伙经营协议书合同书
- 江苏《精神障碍社区康复服务规范》
- DL∕T 2598-2023 发电厂水汽中低浓度溶解氧在线测量导则
- 土地复垦方案编制实务上下册全(2篇)
- 湘科版小学五年级科学下册知识点全册
- 库存物品报废申请表
- 幼儿园故事课件:《刻舟求剑》
- 2023年开封文化艺术职业学院单招笔试职业技能考试题库及答案解析
- GB/T 5285-2017六角头自攻螺钉
- GB/T 3810.7-2016陶瓷砖试验方法第7部分:有釉砖表面耐磨性的测定
- GB/T 27981-2011牛传染性鼻气管炎病毒实时荧光PCR检测方法
评论
0/150
提交评论