wax-lost precision casting,150psi, size 1/8"-4",material SS304,SS316,Connection type :thread,butt -weld,socket weld.Accoring DIN,BS,GB,ANSI,API etc.international standard.The main products such as elbow 90,elbow 45,union ,socket plain ,hose nipple ,barrel nipple ,close nipple,hexagon bushing,plug, socket banded and so on.