Cangzhou Hongshi Pipe Equipment Co., Ltd. is located in Mengcun Hui Autonomous County, the national hometown of pipe fittings along the Bohai Sea coast. We manufacture various types of sleeve fittings according to the 02S404, S312, 05S2, 07FS02, 07FK02, and 91SB3-1 catalogs designed by the National Research Institute of Building Science. Our products include flexible waterproof sleeves, rigid waterproof sleeves, single-side sealed waterproof sleeves, double-side sealed waterproof sleeves, flexible sealed sleeves, flexible double-gasket sleeves, ventilation sleeves, manifold, manhole and accessories, rubber soft joints, expansion joints, high, medium, and low-pressure flanges in various models, elbows, caps, reducers, tees, standard components, grooved pipe fittings, large bends, elbows, metal and rubber gaskets, etc. Our company boasts strong technical capabilities, excellent design, advanced technology, and a team of senior technicians and skilled workers with many years of manufacturing experience. Our products are of high quality, and our company enjoys a good reputation, with a focus on perfection, reasonable pricing. We strive for survival through quality, development through reputation, civil commerce, keeping pace with the times, and innovation. Quality is the lifeblood of our enterprise, safety is our guarantee, and customers are our gods. All employees of Cangzhou Hongshi Company warmly welcome domestic customers to discuss business. We unwaveringly adhere to the quality policy of "honesty and credibility, quality first," and work together to expand our business on a basis of equality and mutual benefit!