1. ISO9001:2000 2. OEM casting 3. Genuine manufacturer 4.ductile iron elevator parts ductile iron ... : ASTM, JIS, BS, DIN, EN, ISO Operation: green sand casting and resin sand casting Surface finish: sand blasting, sand blasting, oiled, zinc, nickel ... Equipment: Laboratory:Brife Introduction of our foundry: Botou Hengsheng Crafts casting CO.,TD has been on this line of business more ...