Product Description Our suggestion about the steel grade: Packaging & Shipping Our packing and delivery: Company Information Cangzhou Kunyuan is franchised dealer of Hengyang Valin--we can provide better price for you at the basis of more professional servic. Welcome your enquiry!! Good new: recently, there is a large number of API bare pipe stock from Hengyang Valin to be dealt with at too much lower price. Welcome your order!! Others products you may insterest in: 1. Vamccum Insulated Tubing; 2. Pipes for coupling stock; 3. Sour service line pipe; 4. High collapse casing, 5. Nickel alloy tubing and casing; 6. Oilfield tools, such as casing power tong, rotary hand slips etc. For more info, pls visit our official web: www.kunyuan.biz