yanshan qianyiASTM A53 Q345B welded steel pipe for nature gas industrySTOCK 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 @2013-01-24 10:33:38