About Us Liaocheng Xinhaifeng Steel Pipe Manufacturing Co., Ltd (Development Zone) covers an area of 86, 580 square meters. Our annual production capacity is 200, 000 tons of steel pipes which are in different specifications. We are professionally engaged in manufacturing and exporting seamless steel pipes, especially in casing pipes, line pipes, structural steel pipes and steel pipes for liquid service. And we have done this area for many years. We could also design different specifications to meet different needs. Next , we will introuduce some of our main steel specifications. product one: (1) Name: Seamless Steel Pipe (2) Brand: Huawei Steel Pipe (by ourselves) (3) Specification: OD 21.3mm - 355.6mm ( 1/2&＃039;&＃039; - 14&＃039;&＃039;) (4) Standard ; ASTM A106 GR B , ASTM A53 GR B SAE1020 SAE1045 JIS G4051 S20C JIS G4051 S45C JIS G3454 STPG370 JIS 3454 STPG42 DIN ST 45-8 DIN ST 52 (5) Tolerate: OD +1% / -1% Thickness +12.5% / -10% lengh 13mm Product Two: (1).Product Name : API 5L X42 X52 X60 X70 and 5CT J55 K55 N80 (2). Brand : Zhongzheng Steel Pipe ( OEM BLANT) (3).Specification: OD 60.3mm - 558.8mm ( 2&＃039;&＃039; - 22&＃039;&＃039; ) The max lengh 13M (4) Standard API 5L X42 X52 X60 X70& 5CT J55 K55 N80 (5) Technics : hot rolled . (6) Packing : Plastic Caps and mark on the pipe Company Name : Shandong Huawei Material Co., Ltd. (An independent body set up under the Xinhaifeng) Address : Liaocheng City Shandong Province China Contact Person : ***** Tell :86-0635-8882629 Fax:86-0635-2119730