Cangzhou Hongshi Pipeline Equipment Co., Ltd. is located in Mengcun Hui Autonomous County, the national hometown of pipeline fittings along the coast of the Bohai Sea. We produce various types of pipe sleeves 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-sided sealed waterproof sleeves, double-sided sealed waterproof sleeves, flexible sealed sleeves, flexible double cover sleeves, ventilation sleeves, manifold, manholes and their accessories, rubber flexible connectors, expansion joints, high, medium, and low-pressure flanges in various models, elbows, caps, reducers, tees, standard components, grooved pipe fittings, large bends, elbows, metal gaskets, 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 corporate reputation is excellent, we strive for perfection, and our prices are reasonable. We survive through quality, develop through reputation, conduct business with civilization, move with the times, innovate, and this is the unwavering service tenet of all our employees. Quality is the lifeblood of the enterprise, safety is the guarantee, and customers are the God of the enterprise. All employees of Cangzhou Hongshi warmly welcome domestic customers to discuss business. We steadfastly adhere to the quality policy of "honesty and trustworthiness, quality first" and aim to jointly expand our business on the basis of equality and mutual benefit!