External waterproof casing | Serco supply material (certified) | waterproof casing is provided by Serco Gongyi City Water Supply Materials Limited. Serco Gongyi City Water Supply Materials Co. (www.gyxjbcq.com/) is a specialist in the "PTFE lined rubber joints, standard waterproof casing, the duckbill valve, power connectors, Stainless Steel rubber joints" of the enterprise, the company adhering to the "integrity business, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact Person: Zhang. Flexible waterproof casing generally applicable to the pipe through the wall at the close by vibration or water requirements of structures offer waterproof casing, casing portion of the processing is complete waterproof casing, both in its outer wall brush primer again (including primer Zhang Dan or cold base oil). Waterproof casing is divided into rigid waterproof casing and flexible waterproof casing. Both places are mainly used in different external waterproof casing, flexible waterproof casing is mainly used in high air defense walls, pools and other requirements of local, rigid waterproof casing pipe is generally used in basements and other needs through the pipeline to the position. "Prevent cross-contamination" when subject to conditions, the indoor water supply pipe must pass beneath the drains, water pipes must set casing waterproof casing manufacturers, sleeve length should not be less than the design requirements, in order to prevent water pollution. Outdoor water pipes, due to constraints from the septic tank spacing is less than the regulatory requirements must also be applied in the water supply pipeline located sleeve, length according to design requirements to do so.