... soluble glass precision casting2. Material: stainless steel casting, carbon steel casting, alloy steel casting3. Certificate: DIN, AISI, ASTM, ... construction parts, valve/valve parts.stainless steel castings, steel investment castings, stainless steel gear boxes, 304, 316, CF8, ... CF4M, anti corrosion steel castings, lose wax casting, heatresistant castingNingbo ZeYang Machinery co.,Ltd have its own ...