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ISO ASTM .pdf EN BS 标准 SAE scan.pdf 地方 AS GB GBT JIS IEC AMS NZS 附有答案技术行业标准军用电子行业 SJ 2023 .docx DIN JB IEEE API rus.pdf Std 规范安全 TS DB15 DB37 2025 TR DB44 NACE ASME 2022 STP 规程 24.pdf DLT Paper 系统 SJT 试验

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ANSI AWWA G520-25.pdf

Since 1881SMAWWA Management Standar dA NSI/AWWA G520-25(Revi si on of ANS I/AWWA G520-17)Waste water Collect ion S...

2026-01-20发布 5 浏览 36 页 1.34 MB
ANSI AWWA C703-24.pdf

Since 1881SMANSI/AWWA C7 03-24(R evision of ANSI/AWWA C703-19 )Cold-Water Meter s—Fir e-Service TypeEfective dat e:...

2026-01-20发布 4 浏览 40 页 1.66 MB
ANSI AWWA C224-24.pdf

??????? ????????????? ?? ???????? !"# ??? ?$% "!&??'%? ( ?? ")%?%? ( *?+,'!!?-?'!+#%.!?? "/%''%?( 0123456278429:34;<...

2026-01-20发布 5 浏览 28 页 1.93 MB
ANSI AWWA G420-24.pdf

Since 1881SMAWWA Management Standar dANSI/AWWA G4 20-24(Revi si on of ANS I/AWWA G420-17)Communicat ion and Cust o...

2026-01-20发布 4 浏览 32 页 1.37 MB
AWWA Manual M4 2016.pdf

Water Fluoridation Principles & PracticesSixth EditionM4Copyright © 2016 American Water Works Association. All Right...

2026-01-20发布 3 浏览 145 页 20.09 MB
ANSI AWWA C621-25.pdf

Since 1881SMA NSI/AWWA C6 21-25(Revi si on of ANSI/AWWA C 621-18)Inter nal Pipe Joint Seal Assemblies for Water ...

2026-01-20发布 4 浏览 24 页 1.48 MB
ANSI AWWA C233-24.pdf

Since 1881SMANSI/AWWA C233-24(First Edi ti on)Geote xt ile Backed Tape Coat ings for Steel Water Pipe and Fitt i...

2026-01-20发布 4 浏览 28 页 1.29 MB
ANSI AWWA C607-24.pdf

Since 1881SMA NSI/AWWA C607-24(First Edi ti on)Installat ion of Concr ete Pr essur e PipeEffective date: Apr. 1,...

2026-01-20发布 3 浏览 60 页 2.5 MB
ANSI AWWA B601-25.pdf

Since 1881SMANSI/AWWA B601-25(Revi si on of ANS I/AWWA B60 1-17)Sodium MetabisulfiteEffective date: Oct. 1, 2025.Fir...

2026-01-20发布 4 浏览 20 页 1.32 MB
AWWA Manual M41 2025.pdf

Manual of Water Supply PracticesFourth EditionDuctile Iron Pipe and FittingsM41Manual of Water Supply PracticesDuctil...

2026-01-20发布 6 浏览 323 页 16.78 MB
ANSI AWWA C901-25.pdf

Since 1881SMA NSI/AWWA C901-25(Revi si on of ANS I/AWWA C90 1- 20)Polyethylene (PE) Pr essur e Pipe, Tubing, a ...

2026-01-20发布 2 浏览 40 页 1.82 MB
ANSI AWWA C712-19.pdf

eal crop marksSince 1881SMCold-Water Meters—Singlejet TypeEff ective date: June 1, 2020.First edition approved by B...

2026-01-20发布 3 浏览 40 页 2.31 MB
ANSI AWWA C305-24.pdf

??????? ????????????????? ???? ???? !"#??$"%??&?$'(?#?)"#?))? ?'?*#?"??+?&? ?#?&,?-????./012345167318923:;<=>=?:@ABCDEFADAGH...

2026-01-20发布 2 浏览 80 页 4.57 MB
ANSI AWWA B201-25.pdf

Since 1881SMA NSI/AWWA B201-25(Revi si on of ANSI/AWWA B20 1-18)Soda AshEffective date: Oct. 1, 2025.First edition...

2026-01-20发布 4 浏览 24 页 1.17 MB
ANSI AWWA G510-21.pdf

eal crop mark sSince 1881SMWastew ater Treatment Plant Oper ati on and Manag ementEff ective date: April 1, 2022...

2026-01-20发布 2 浏览 32 页 1.87 MB
ANSI AWWA G400-24.pdf

AWWA M anage me nt S tandard Since 1881SMAWWA Management Standar dA NSI/AWWA G400-24(Revi si on of ANS I/AWWA G...

2026-01-20发布 4 浏览 20 页 1 次下载 1.2 MB
AWWA Manual M2 2001.pdf

AdvocacyCommunicationsConferencesEd ucation and TrainingScience and TechnologySectionsThe Aut horit ative Resource on S...

2026-01-20发布 3 浏览 243 页 5.61 MB
ANSI AWWA B405-24.pdf

op mark sSince 1881SMSodium AluminateEffective date: Aug. 1, 2024.First edition approved by Board of Directors May...

2026-01-20发布 2 浏览 26 页 1.32 MB
ANSI AWWA B408-25.pdf

Since 1881SMA NSI/AWWA B408-25(Revi si on of ANSI/AWWA-18)L iquid Polyaluminum ChlorideEffective date: Aug. 1, 2025....

2026-01-20发布 2 浏览 32 页 1.83 MB
ANSI AWWA C604-24.pdf

Since 1881SMA NSI/AWWA C604-24(R evision of ANSI/AWWA C 604-17)Installat ion of Buried Steel Water Pipe—4 In. (10...

2026-01-20发布 1 浏览 60 页 2.24 MB

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