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, 91SB3-1 catalogs, and other designs from the National Building Research Institute. Our products include flexible waterproof sleeves, rigid waterproof sleeves, single-sided sealed waterproof sleeves, double-sided sealed waterproof sleeves, flexible sealed sleeves, flexible double-flanged sleeves, ventilation sleeves, manifold valves, manholes and accessories, rubber soft joints, expansion joints, flanges of various pressure ratings, elbows, caps, reducers, tees, standard parts, grooved pipe fittings, large bends, elbows, metal and rubber gaskets, etc. We have a strong technical team with excellent design, advanced technology, and a group of senior technicians and technical staff with years of manufacturing experience. Our products are sold in more than 20 provinces and cities across the country, known for their quality and the company's good reputation. We strive for excellence, offering reasonable prices. Seeking survival through quality, development through reputation, engaging in civilized business, moving with the times, and innovating are the unwavering service tenets of all our employees. Quality is the lifeblood of the company, safety is the guarantee, and customers are the God of the company. All employees of Cangzhou Hongshi Company warmly welcome domestic customers to discuss business. We consistently adhere to the quality policy of "honesty and credibility, quality first" and aim to jointly expand our business on the basis of equality and mutual benefit!