... ,timely delivery; 3>Had been approved by ASTM. alloy seamless steel tube: Material: 12Cr1MoV, P22(10CrMo910), T91, P91, P9, T9 ... terms: T/T or L/C Package: painting black, pipe cap, steel strips bundled or according to customer's requirement. Certificate ... good cooperation with Chengdu Steel Group Co., Ltd., Baotou Steel Group Co., Ltd., Baoshan Steel Corporation and Tianjin Steel Pipe Group Co., Ltd ...