seamless carbon steel pipe ASTM A106 GR.B 1.Material:A106/A53/Q345B,Etc. ... /2",3",4",6",8",10" ASTM A106 B steel pipe 1.Product Name: Seamless Steel Tube and Pipe2.Place of ... Origin: China3.Application: Seamless steel tubes for equipment, pipelines, vessels, pipe fittingsand mechanical Structures.4.Grade: 10,20,35,45,Q345 ... B/L2:30%T/T in advance+70%L/C3:100%L/C MOQ 1 Ton Supply ability 2000~2500 Tons ...