Corrosion waterproof casing, waterproof casing corrosion coatings after special treatment, waterproof casing effectively prevent oxidation and corrosion. Pipe material class through the floor needs to be protected. For example, above all with regard to plastic drainage pipe casing practices plus waterproof casing, is to prevent the roots of a protective measure pipeline damaged by an external force. (Plastic pipe fear damage from the roots, because the waterproof casing price, maintenance is very difficult). Flexible connectors sealed waterproof casing assembly and disassembly, like, not only to use the proper tools, equipment, but also the technical documentation required when applying the appropriate tightening torque, tighten the bolts with a wrench, it should be considered to determine whether the size of the diameter Casing addition wrench, especially when the bolt diameter 20mm or less forced to pay attention to how much money the size waterproof casing to avoid damaging the threads. When tightening the screws tighten diagonally must first flange, so no matter how big caliber, how many are needed to tighten the flange angle holes. Tightening torque of threaded connections have important provisions, provisions must be screwed with a torque wrench when installing bolts, threaded connections on the composition of the assembly, the force should be uniform, according to a certain order of alternately tighten. Waterproof casing manufacturers, Ningxia waterproof casing, Serco supply materials provided by Serco Gongyi City Water Supply Materials Co., Ltd. Serco Gongyi City Water Supply Materials Co., Ltd. (www.gyxjbcq.com/) strong, credible, in Zhengzhou, Henan Province of valve industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Serco water into the brilliant material and you work for a better future!