SJ 3188-1989
止回阀技术条件
Specification for one-way valve
1989-02-10
CJ/T 154-2001
给排水用缓闭止回阀通用技术条件
General specification of slow closure type check valve for water supply and sewerage
2001-09-30
PIP PHSMV025
Hygienic Stainless Steel Check Valve Descriptions [Technical Revision]
卫生不锈钢止回阀说明[技术修订]
2020-01-01
DL/T 923-2016
火力发电用止回阀技术导则
2016-12-05
T/CECS 446-2016
双止回阀倒流防止器应用技术规程
2016-06-29
GOST 23405-1978
Вентили запорные для пневматических и гидравлических систем. Типы, основные параметры и технические требования
气动和液压止回阀 类型 主要参数及技术要求
KS V ISO 20602
선박 및 해양기술 — 극저온용 체크 밸브 — 설계 및 시험 요건
船舶和海上技术.低温应用用止回阀.设计和试验要求
2021-04-05
ISO 20602-2019
Ships and marine technology — Check valves for use in low temperature applications — Design and testing requirements
船舶和船舶技术 - 用于低温应用的止回阀 - 设计和测试要求
2019-05-07
CECS 446-2016
双止回阀倒流防止器应用技术规程(附条文说明)
GB/T 44678-2024
船舶和海上技术 船用超低温止回阀 设计与试验要求
Ships and marine technology—Check valves for use in low temperature applications—Design and testing requirements
2024-09-29
ISO 20602-2019/Amd 1-2021
Ships and marine technology — Check valves for use in low temperature applications — Design and testing requirements — Amendment 1
船舶和海上技术.低温应用用止回阀.设计和试验要求.修改件1
2021-12-10
SJ 3190-1989
球阀技术条件
Specification for ball valve
1989-02-10
T/CZII 001-2022
电梯技术条件
2022-12-31
HB/Z 22-1991
标尺技术条件
1991-05-07
HB 5856-2011
垫圈技术条件
Technical conditions of washers
2011-07-19
QJ 389-1989
铰刀技术条件
1989-02-25
QJ 1773-1989
丝锥技术条件
1989-03-08
JG/T 5040.1-1993
铲运机 技术条件
Specification for scraperes
1993-11-22