... DN15-DN1200 3.Material:carbon steel,stainless steel 4.Pressure:150LBS-6000LBS 5.PL,SO,WN Cangzhou Shengtong ... to the ANSI,API,DIN,BS,JIS,GB international standard .The Company has been certified with ISO 9001 ... . The product sells in distant markets such as the European, the Americas, the Australian state, Southeast Asia, the ... together with us for a brighter future. High pressure carbon steel flange