1. CARBON STEEL PIPE 2. Product name: carbon and alloy steel pipe3. Technic : hot rolled / cold drawn/4. Place of Origin: Shandong Zhongzheng Steel Pipe Manufacturing Co., Ltd5. Material : ASTM A106Gr.A ASTM A106Gr.B ASTM A53Gr.B ASTM A179, ASTM A192, ASTM A210-A-1 , and other materials of GB,...