Tianjin Lefin Industrial Co., Ltd. is a professional manufacturer of high-frequency straight-seam welded steel pipes which are mainly used for low-pressure liquid fluid transportation. Our annual production capacity is more than 200,000MT. We have subsidiaries: Tianjin Shi Shengqifeng Steel Pipe Co., Ltd., Tianjin Shi Ruifeng Science and Technology Development Co., Ltd and Tianjin Shengqifeng International Trading Co., Ltd.



We specialized in producing all kinds of high frequency straight welded tubes with diameters ranging from 25mm to 273mm, and square & rectangular pipes...