We are urgently looking for supplier in China for carbon steel tubing. The details are asbelows: 1. 30000 feet 7 carbon steel tubing, new vam or alternative premium connection, 4ofoot factory treaded/certified box/pin lengths- 35LBS per foot, carbon steel, L-80 material 2.50 each 7 threaded/certified coupling for the above 3.30000 feet-5 1/2 carbon steel tubing, new vam or alternative premium connection, 40foot factory threaded/certified box/pin leagths 23 LBS per foot carbon steel L-80 material. 4. 50 each 5 1/2 threaded/certified coupling for the above. Pls quote us price at Tianjin port, including tax. Thank you in advance. Best Regards, Yuan Junping Show More