1.ISO system certification. 2.Material:Aluminum,Stainless steel. 3.Machined according to customer's drawing. 1.Material:Stainless steel,Aluminum.2.Plating:Other.3.Best quality.4.Competitive price.5.Strong production capacity.6.OEM/ODM service.7.Small order is acceptable. Qingdao Lianhai Hydraulic Machinery CO.,Ltd is a professional manufacturer in metal machining and machinery design and assembly ...