Qingdao Singho Industrial Co., Ltd.

Qingdao Singho Industrial Co. Ltd. (founded in 1999) is a leading company in the field of OEM/ODM services for American and European customers. With our own foundry, CNC machining workshop, assembly line, and quality testing laboratory, we have established long-term partnerships with over 200 clients in more than 20 countries. Covered materials: - Carbon Steel (e.g., AISI 1015/1045/1080) [0.1-80kg] - Alloy Steel (e.g., AISI 4140/4340/8620) [0.1-80kg] - Stainless Steel (e.g., Series 300, Series 400, 17-4PH, 15-5PH) [0.1-80kg] - Complex Alloy (e.g., G22NiMoCr5-6) [0.1-80kg] - Gray Iron [0.5-200kg] - Ductile Iron (Spheroidal Graphite) [0.5-200kg] - Aluminum Bronze [0.1-80kg] Production process - Reverse Engineering - Rapid Prototyping (with 3D printing and casting simulation) - Casting (Investment Casting, Shell Molding, Resin Sand Casting, Green Sand Casting) - Machining - Surface Treatment (Polishing, Anodizing, Priming, Painting, Coating) - Assembly QC Testing (upon request with official reports): - Dimensional Checks - Mechanical Properties - Chemical Composition - NDE Testing (VT, PT, MT, UT, RT) - Hydraulic Pressure Testing (for pressurized parts) - Pump Characteristic Testing.