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止回阀 旋启式止回阀和倾斜盘

Check Valve Swing Check Valve and Swashplate

球墨铸铁管及配件

Ductile iron pipes and fittings

自来水厂用金属法兰

Metal flange for water plant

水和废水管道用产品的压力分类条件

Conditions for Pressure Classification of Products for Water and Wastewater Pipelines

塑料管道及配件 在 20 °C 以上温度下使用的聚乙烯管道系统的压力降低系数

Plastics pipes and fittings. Pressure reduction factors for polyethylene pipeline systems for use at temperatures above 20 °C

气动加压排放管、排水管和下水道中使用的部件的一般要求；德文版本 EN 1293: 1999

General requirements for components used in pneumatically pressurized discharge pipes, drains and sewers; German version EN 1293: 1999

冷热水装置用塑料管道系统.耐升温的聚乙烯(PE-RT).第1部分:总则

Plastics piping systems for hot and cold water installations - Polyethylene of raised temperature resistance (PE-RT) - Part 1: General (ISO 22391-1:2009); German version EN ISO 22391-1:2009

农业灌溉美利体育官网首页网址 灌溉阀 第1部分：通用要求

Agricultural irrigation equipment—Irrigation valves—Part 1: General requirements

塑料管道和配件.使用温度在20℃以上的聚乙烯管道系统的压力折减系数

Plastics pipes and fittings - Pressure reduction factors for polyethylene pipeline systems for use at temperatures above 20 degrees C

水和废水管道产品压力分类的条件

Conditions for pressure classification of products for water and wastewater pipelines

液体泵 安全要求 水压试验程序

Liquid pumps - Safety requirements - Procedure for hydrostatic testing

水厂用闸阀 弹性阀座

Gate valves for waterworks purposes - Resilient-seated

液泵 安全要求 水压试验程序

Liquid pumps - Safety requirements - Procedure for hydrostatic testing

供水用和承压排水及污水用的塑料管道系统 聚乙烯(PE) 第4部分：供水系统用阀门

Plastics piping systems for water supply, and for drains and sewers under pressure — Polyethylene (PE) — Part 4: Valves for water supply systems

产品用于水和废水管道的压力分类条件

Conditions for pressure classification of products for water and wastewater pipelines

供水和废水管道产品压力分级条件

Conditions for pressure classification of products for water and wastewater pipelines