[The Longsheng production] Sichuan | ring waterstops - Fujian | ring waterstops 
 Sealing: 
 This product is widely used in various types of concrete and cast-in-place concrete structure. For example: culverts, dams, reservoirs, inverted siphon, subway, culverts, tunnels, hydropower, thermal power plants and so on. In these works, sometimes not continuous casting, or will cause expansion and contraction of concrete structures due to ground deformation and temperature changes and other reasons, should be left in the pouring deformation joints, construction joints. Seam seepage, leakage through the rubber water-stop approach to solve. It can prevent groundwater (or outside water) leaking into the building structure, but also to prevent water leakage inside the building to the outside world, with favorable results. 
 (2) water-stop design and selection: 
 The choice of 1.1 water stop 
 Should be based on a hierarchy of importance of the structures, deformation joint deformation and water pressure, water-stop, so that (should be) taken into account to determine the work environment, economic factors and other conditions. 
 1.2 water stop material choice according to the following provisions 
 1.2.1 Under normal circumstances, multi-use natural rubber water stop. 
 1.2.2 When the case of weak acid, alkali, corrosive media, should use neoprene waterstops. 
 1.2.3 should be selected when the case of oil medium nitrile rubber water stop. 
 1.2.4 When possible case of mold erosion, should be considered mold rubber water-stop, their grades should reach more than two and two. 
 1.2.5 When the use temperature: -25 ° C ~ 60 ° C, selection of neoprene waterstops. 
 -35 ℃ ~ 60 ° C, use of natural rubber water stop. 
 -40 ° C ~ 60 ° C, use EPDM rubber water-stop. 
 1.3 the waterstops width and thickness of options to consider the following three factors 
 1.3.1 the level of deformation joint and vertical deformation 
 Address: Hong Thai Street, Development Zone, Hengshui City, on the 8th 
 Tel :400-0318-993 
 Fax :0318-7108181 
 Phone: 15603189993 
 13012098388 
 E-mail: 13012098388@sohu.com 
 Web site: http://www.hszs.org 

 Hengshui the Longsheng Engineering Rubber Co., Ltd. Rubber City is located in Hengshui City, very convenient traffic conditions, Hengshui the Longsheng Engineering Rubber Co., Ltd. specializing in the production of rubber water-stop the waterstops series, water expansion of the seal, bridge expansion joints, two-component polysulfide sealant . Set of technology development, production and operation in one, until the water, drainage, bridge engineering, high-tech, high-quality engineering rubber accessory products. The products are widely used in underground facilities