... casting; investment casting; water glass; lost wax;Material:Carbon steel, alloy steel, stainless steelStandards:ASTM, AISI, BS, DIN, JIS, NFCapacity: ... ultrasonic fault detector, versatile magnetic particle flaw detector,high speed carbon-sulfur automatic analyser, metallography and scanning electron microscope, ... ) or as customer's required Pipe coupling,high quality pipe,stainless steel pipes