alloy steel precision casting 1, high chrome 2,precision casting 3,long durability 4,OEM, CE, ISO9001 alloy steel precision castingCE, ISO9001 CERTIFICATECompany Introduction:Shandong Kaitai ... professional enterprise which integrates with technical research, development, production, installation, and debugging. Cooperated with machinery college of Jinan University, we have ...