... surface treatment availableWe mainly deal in investment castings, precision castings/ lost wax castings and CNC machine parts, casting and forging ... , 316, 316L, carbon steel etc 2. Process: Lost wax process, silicasol precision casting 3. Weight range: 0. ... parts, machinery parts, marine hardware, construction hardware, pump&valve parts, door Handle&Hinge, agricultural machinery, textile accessories, ...