... long durability 4,OEM, CE, ISO9001 alloy steel investment castingCE, ISO9001 CERTIFICATECompany Introduction:Shandong Kaitai ... integrates with technical research, development, production, installation, and debugging. Cooperated with machinery college of Jinan University ... -protection and dust-removal equipment, and offer the ideal key equipments to casting, forging and heat treatment, steel structure, ...