... .T.:0.5-16MM LTH1-12M JIS G3444 STK540 pre-galvanized steel pipesO.DO.D toleranceW.TThickness Tolerance21-323mm ... -2008,EN10210,API,Raw material cert,Mill cert,Reap on site inspection report,SGS,BVStandardJIS G3444ASTM A53/ASTM A36BS1387 ... South and southeast Asia,Australia,Africa,Place of OriginChinaHS code:73063090Productivity20000Ton/MonthProcessing galvanzied,inner and outer stab clean,bevelled, ...