Chang a valve manufacturing certification in zhejiang province

查看更多

Made in 2021 "zhejiang" certified quality integrity report

浙江昌一阀门有限公司二○二二年四月二十日  声  明 ...

查看更多

Chang one valve quality assurance commitment

Quality Commitment The company promises that under the premise of correct ...

查看更多

Zhejiang quality manufacturing chang a valve

查看更多

Social responsibility report in 2021

 Zhejiang Changyi Valve Co., Ltd.April 20, 2022foreword    ...

查看更多

Japanese standard flange size of ball valve, the manufacture standard is what?

What is the standard of Japanese standard flanged ball valve? What is the ...

查看更多

A chip ball valve of surface finish

For most mechanical equipment components, the surface finish will greatly ...

查看更多

High platform ball valve friction size depends on what factors

The size of the friction force of the high platform ball valve depends not...

查看更多

High platform ball valve installation

In recent years, the ball valve is a new type of valve that has been widel...

查看更多