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...

Flange connection is the two pipes, fittings or equipment, first fixed in a flange flange, between ...