... ,grey,blue,red,black Color Thread or socket UPVC ball valves Steady and reliable quality, 100% gas sealing test.Competitive ... supplied according to different marketFull size include 1/2",3/4",1",1-1/4",1-1/2",2 ... ",2-1/2",3",4",6"Different shapes include round and octagon.Full ... to 90oC and high pressure resistance is over 5MPa).3) Hot welding connection adopted, making pipes and fittings ...