... 40mm Brand:Tigersteel API 5L ASTM A 53/A106 Gr.B seamless steel tube,line pipe & oil & gas line ... 2008,EN39,BS1139Material Carbon steel :ASTM A 53/A106 GR,B ,X42.X52. Q195,Q235,Q345...... Quality PrimeTechnique ERW, ... 5.8m,6.0m,11.5m,11.8m,12mZinc Coating 60-275g/m2 (If need )Productivity 30,000 per ... CIF,Payment T/T 20% advance ,blance against of B/L copy Market East Asia, Southeast Asia, Middle East, ...