1.ASTM A234 Carbon steel WPB 90 degree Elbow 2.ANSI,DIN,BS,JIS,UNI,MSS 3.Material:CS,SS ... , Shandong Province. West to Jinan and east to Zibo, with Ji-Qing Highway passing through the county, our company enjoys ... company is to survive on high quality, seek for development with benefit and manage sincerely. We hope to provide high- ... of all circles to visit our company and cooperate with us.3.certificate