... plate 2,1.22m*2.44m 1.5m*6m Hebei Runcheng Steel Pipe Co., Ltd. ... steel pipe for ASTM A179, specifications: 3/ 4", 1" 6 -40- 101 DEG C temperature operation of seamless ... 1999, grades: 10, 20, 35# # #, 45, #, specifications: 6-720* 1-70mm 10 Seamless steel pipes conveying fluid GB / T8163-1999 ... GB3087-1999, 10, 20: # #, specifications: 6-720* 1-70mm 12 High pressure boiler tube steel: GB5310-1995, 20G ...