Longyuan AFS Co., Ltd. is a leading provider of 3D printing equipment and manufacturing services in China, providing high-quality R&D pilot production and rapid manufacturing services for small-lot, multi-species and complex structure metal products based on integrated technology of "3D printing, casting, machining, and inspection". The company has nearly 30 years of experience in 3D printing services and casting experience through the research institute, post-doctoral workstation, engineering technology center "trinity" of the collaborative innovation system to provide solid technical support. Through self-developed 3DP inkjet sand printing, SLS selective laser sintering 3D printing series of equipment, rapid casting, machining, heat treatment, testing capabilities, the formation of 3DP sand casting, SLS sand casting, SLS wax mold casting, and a full set of process solutions. We can provide rapid pilot production service for users of aerospace, automobile, motorcycle, rail transportation, ship pump and valve, machinery manufacturing, art casting, metal processing, etc. for aluminium alloy, copper alloy, cast iron, cast steel, magnesium alloy, high-temperature alloy, titanium alloy, etc.