... plate flange, welding neck collar, welding-on collar, loose plate flange, companion flange and so on.Facing method: rust preventing oil, ... , cold galvanization or colored electroplate, powder coating and so on. Detailed information as follows:1.Standard:ANSI,ASTM,ASME,DIN ... Delivery time:15 to 30 days after we signed SALES CONTRACT.9.Port of departure:Shanghai,Dalian;Qiangdao,etc.10.Certification ...