... ISO228/1 certification:ISO9001,CE,UKAS 306 stainless steel pipe fittings:size:1/8"-4" material:ss304,ss316 threaded:BSP, ... 40,150 pound;3.Thread-test prior to shipment;4.Pneumatic pressure testing is performed on every fitting manufactured;5.Material ... company’s main products are stainless steel pipe fittings,stainless steel valve,sanitary fittings,quick couplings,stainless steel flange,marine hardware, ...