Qingdao Hyperway International Trade
From Oct.01 to Oct.07, we'll have our National Day Holidays.
fresh and frozen meat mincer, please click the linkage for details.
To connect steel pipes, there are mainly four methods. that is, by welding, flange, thread and grooved couplings and fittings.
Ductile cast iron check valves are double flanged, resilient seated. They are widely used to prevent backflow of water by rubber-flap in potable water system or sewage system.
