Established in 1998, HeNan Xinfengyi Enterprise Co., Ltd. specializes in seamless steel pipe products, including carbon seamless steel pipes, alloy steel pipes, boiler pipes, oil pipes ,hydraulic prop pipes. The producing method include hot rolled, cold drawn and hot expanded. We also supply welded pipes and spiral pipes. The main standards include ASTM/ASME, API 5L, DIN, EN, JIS, BS and GB. With our own and controlled steel pipe factory, we sell 350,000 metric tons of seamless carbon steel ...