... to 48" 4 Thickness: 2 -59.54mm PRODUCT NAME:black carbon steel pipe, weled pipeSTANDARD:DIN 1629/3, DIN 1630 ... -ST52, Q195-Q345,20#, A53(A,B), A106(B,C), St37, St37-2, Q235SIZE:2.11mm--609.6mmWALL THICKNESS: ... SCH160,STD,XS,XXS LENGTH:Max 12 MetersSURFACE TREATMENT:Black painting, black varnish, Glavanized or as per customer's request. ... testing equipments. Hoping we can get your inquiry. black weled pipe