Cangzhou Hongshi Pipeline Equipment Co., Ltd. is located in Mengcun Hui Autonomous County, known as the hometown of pipe fittings along the Bohai Sea, and produces various types of sleeves based on the 02S404, S312, 05S2, 07FS02, 07FK02, and 91SB3-1 catalogs designed by the National Building Research Institute. We process and manufacture a wide range of sleeves, including flexible waterproof sleeves, rigid waterproof sleeves, single-sided sealed waterproof sleeves, double-sided sealed waterproof sleeves, flexible sealed sleeves, flexible double-gasket sleeves, ventilation sleeves, manifold, manholes and accessories, rubber flexible joints, expansion joints, high, medium, and low-pressure flanges in various models, elbows, caps, reducers, tees, standard parts, 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 years of manufacturing experience. Our products are of high quality, our company has a good reputation, we strive for perfection, and our prices are reasonable. Surviving on quality, seeking development through reputation, conducting business in a civilized manner, keeping pace with the times, and innovating are the unwavering service宗旨 of all our employees. Quality is the lifeblood of our company, safety is our guarantee, and our customers are our gods. All employees of Cangzhou Hongshi Company warmly welcome domestic customers to discuss business. We always adhere to the quality policy of "honesty and trustworthiness, quality first," and work together on mutually beneficial terms to achieve great success!