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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 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
AWS C4.9 - C4.9M-2024.pdf

Recommended Practices for Oxyacetylene Cutting of SteelAWS C4.9/C4.9M:2024An American National StandardAWS C4.9/C4.9M:2...

2026-01-20发布 4 浏览 166 页 50.32 MB
AWS C3.9M - C3.9-2020.pdf

Specifcat ion for Resist ance Braz ingAWS C3.9M/C3.9:2020An American National Standard AWS C3.9M/C3.9:2020An American...

2026-01-20发布 5 浏览 32 页 706.1 KB
AWS D1.1 - D1.1M-2025.pdf

Structural Welding Code—SteelAWS D1.1/D1.1M:2025An American National StandardAWS D1.1/D1.1M:2025An American National St...

2026-01-20发布 8 浏览 646 页 9.99 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
AWS A3.1-2025.pdf

A3.1:2025Am erican W eldinq SocietvMaster Chart of W eldinq and Joininq ProcessesABC W ELDiN G (AW nHIGH EN ERGY...

2026-01-20发布 9 浏览 1 页 255.82 KB
AWS D1.5M - D1.5-2025.pdf

Bridge Welding CodeAASHTO/AWS D1.5M/D1.5:2025 An American National StandardA Joint Publication ofAASHTO/AWS D1.5M/D1.5:...

2026-01-20发布 5 浏览 506 页 5.75 MB
AWS B2.4-2023 scan.pdf

AWS B2.4-2023 scan.pdf

2026-01-20发布 8 浏览 47 页 1.88 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

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