According to the connection method of the pipe end, the steel pipe can be divided into: plain pipe (...

The steel types and varieties of steel pipe products are various, and their performance requirements...

Steel pipes are divided into seamless steel pipes and welded steel pipes. The production process of ...

1, carefully read the valve manual, understand the basic structure and principle2, electric valve op...

First, the contribution to the environmental protection industry. Taking the butterfly valve as an e...

1. Ductile iron pipe is prone to folding. Folding is a variety of broken lines formed on the surface...

Hard polyvinyl chloride (PVC-U) water supply pipe and fittings as a mature water supply pipe has aci...

Steel pipe, Stainless Steel pipes and fittings Products Parameters Standard/ Standard ISO, ASTM AISI...

1, document review needs to provide WPS, PQR, welder qualification WPQ....

(1) The water supply and gas pipeline projects shall be constructed in accordance with the design do...

(1) Before inserting the socket (socket) into the person, brush the outside of the socket door, the ...

(1) All the connection work can be carried out from the inside of the pipe, without opening trenches...