... /400/500,S235JR/S235JQ/S235J2,STK290,STK400,STK490,STK500,STK540InspectionWith Hydraulic Testing, Eddy Current , Infrared TestTechnique:Welded:Cold drawn,Hot rolled ... code:73063090Productivity20000Ton/MonthProcessinggalvanzied,inner and outer stab clean,bevelled,threading,with coupling and plastic caps protected,packing in plastic cloths,3PE ...