... Customers' RequirementQingdao Xin Yang Machinery Co., Ltd specializes in pump, pump parts and other machinery parts manufacturing since 2004, ... 8) Full material testing process and quality control system.(9) Quality warranty and on time delivery.(10) ... order possible. our production range: Qingdao Xin Yang Machinery Co., Ltd.Casting ProcessPrecision casting, Sand casting, Investment casting, Silicasol ...