... mm2 4. Include:YG6... Tungsten Carbide/ silicon seal /mechanical seal LSWC:Application Products: 1) Cemented Carbide Products. a) Wear-resistant ... parts Mechanical seal rings,Sleeves, Nozzles, Valve ball, Valve seat, Drawing dies, Stamping dies, Powde retallurgy dies, ... inserts, Woodworking inserts and glass cutter. Tungsten Carbide mechanical seal LSWC