... steel casting parts.2.Available material:stainless steel,carbon steel and refractory of various specification.3.technique:silicon sol process. ... 5.weight range:from 0.05kg to 50kg.6.testing machine:spetrometer.7.OEM service is offered.8.products coverage: ... building ,auto, artificial limbs,chemical,weapon,sanitary bath equipment and petroleum equipment.etc.9.products:valve,flange,screw nut,screw ...