... 5.ISO 9001:2008 certified Qingdao Antai Heavy Industry Machinery Co., Ltd.Founded in 2003, 10 years experience for making shot ... with strict quality control procedure.Own foundry to produce special material spare parts for our machines. Chain Bucket Elevator Performance ... , granular, powder diffuse pressure does not exceed 250 degrees the material, such as mining, coal, coke, cement, Stone sand.3, ...