Sell yanshan gb/t9711 q345b welded @China (Mainland)

yanshan GB/T9711 Q345B welded steel tube for nature gas industrythickness Welded steel pipe Standard:GB/T3091, GB/T3092, GB/T9711, ASTM A53, BS1387, ASTM?A120 API 5L Material: Q195,Q235B,Q345B Outside Diameter:1/2

Post by Wenjun Peng    Construction & Real Estate    @2013-03-29 11:40:42