Dongguan diamond grinding force slightly below ground electric corundum, but its capricious, and has a characteristic shell-shaped mouth of the segment, the advantage of grinding pieces of finish, small and shallow sand marks. Fine and uniform grinding, can improve product quality, unique product-oriented. Natural diamond grinding time is short, high efficiency, low cost, short life can compensate for the lack. Abrasive metal surface during cutting and Shuhei main material. In actual production, the commonly used abrasive artificial emery, corundum, silicon carbide, diatomaceous earth, pumice, quartz sand and the like. Carborundum floor - with medium hardness and excellent toughness (compared to other abrasives) is mainly used for rough grinding and polishing of low-strength metal (e.g., iron, brass, bronze, etc.) is polished for polishing all metals. PU sports ground floor construction process: ① waterproof layer: The ground should have been doing water treatment (waterproofing); ② prime handle: according to the situation well polished elements, repair, removal; ③PU Primer: respectively asphalt (concrete) surface PU coating primer, primer coating should be uniform, asphalt surface of the base should be about 12 hours curing, curing concrete should finish at the end of 1-2 hours; ④PU coating: primer to be completely cured, can be applied to the PU Trowel together to enhance the wear resistance of the ground; ⑤PU finish: PU paint with a roller, so that the ground dustproof and waterproof, abrasion resistant, easy to clean, color uniformity across the ground after the completion, without hollowing; ⑥ scribe: court according to the standard white and yellow paint with 50mm PU crossed; ⑦ playground dash after curing PU week to complete the entire course of the reaction after the solid before use; ⑧ throughout the construction process in case of rain should immediately stop the construction, timely protection measures and conservation. . Scope:; 2) children's playground, kindergarten activities in the field; a) court, tennis court, basketball court, volleyball and other sports 3) pedestrian trails, community, playgrounds and other color coating. Name: Dongguan King Fung Building Materials Co., Ltd. Website: http: //jingfengdp.com/ Address: Room 503, City Yiu Hung town hall building