... 1.With beveled end and black antirust paint 2.API,CE,ISO certificate. 3.Reasonable design, novel ... /8''-4''(Threaded and socket-welding);16''~72''(Welded)Wall thicknessSCH10,SCH20,SCH30,STD,SCH40,SCH60,XS, ... 65, WPHY 60, WPHY 52,WPHY 46,WPHY 42,API 5L GRB, X60, X65, X42,X52,ASTM A403 WP304, ... us. ZHEJINAG ZHONGCHENG VALVE Co.,Ltd (CE,ISO,API,CERTIFICATED MANUFACTURER tee for pipe fitting, pipe fittings. ...