... , fertilizer, fabric, aviation and nuclear ).Chemical, electricity, medicine, machinery, equipment manufacturing and construction.Pressure and heat transmission 1)Seamless austenitic ... TP317L,TP321/321H,TP347/TP347Hduplex S31803,2205,and we also produce other specification according to ... GB,DIN6)OD:6mmto630mm7)Delivery conditions:annealed and pickled8)Applide for instrumentaion9)Bunding:according to ...