... 2) Thickness: SCH20, SGP, STD, SCH40, SCH80, SCH160 3) Standard: ANSI B16.9/16.2 PVC pipe fittings 1) Size: 1/2"-72" 2 ... ) Thickness: SCH20, SGP, STD, SCH40, SCH80, SCH160 3) Standard: ANSI ... : ASTM A234 WPB, carbon steel5) Thickness: SCH20, SGP, STD, SCH40, SCH80, SCH1606) Surface treatment: Blacking painting, black varnish, transparent oil. Special ...