... )T.H:0.6-16mm 4)Certificate :ISO,BV,SGS BS 1139 scaffolding steel pipe Addition details of scaffolding steel pipe ... .0-16mmLength Max 16 metersStandardGB ,ANSI ,ASME ,ASTM ,JIS ,DIN, BS,ENSteel GradeASTM A 106 GRB/A53 GRB/Q345/Q235/Q195 ... business philosophy os "customers first ,to strive for progress " the "customers first" principle for the majority of customers with quality service .we ...