... order acceptable ProductPipe fitting,Carbon steel elbow,PIpe elbowSize 1/2"-48"(seamless pipes)MaterialWPB A234 ... customer s requirement.Type Butt-welded seamless carbon steel pipe elbow.Wall thicknessSCH10, SCH20, SCH30, SCH40, STD, ... Oil, chemical industry, water conservancy, electric power, boiler, machinery, metallurgy, sanitary construction, etc.QualityFirst-classAuthenticationISO 9001 ...