Tungsten Carbide/ silicon seal LSWC: 1. Density: 14.8~15g/cm3 2. Hardness: 88~91HRA ... /mm2 4. Include:YG6... Tungsten Carbide/ silicon seal /mechanical seal LSWC:Application Products: 1) Cemented Carbide Products. a) Wear-resistant parts ... inserts, Woodworking inserts and glass cutter. Tungsten Carbide mechanical seal LSWC