Mastars Industries Co., Ltd. is a full-service digital manufacturing partner with 25+ years of focused expertise in small- to- medium volume production. We provide one-stop services-including 3D printing, CNC machining, injection molding, tooling, and final assembly-to help innovators and global brands move quickly from concept to market. Our vertically integrated workflow ensures consistent quality, shorter lead times, and cost-effective results across programs of any complexity. With in-house DFM, rapid prototyping, validation, and low-volume production, we de-risk development and accelerate time-to-market while maintaining full control over cost, schedule, and performance.

Qingdao Chengenxin Industry and Trade Co., Ltd was established in 1995. Our factory covers approximately 9000 square meters and is a fully integrated manufacturer specializing in aluminum die casting, high-strength aluminum squeeze casting, CNC machining, plastic injection molding, 3D printing, and mold development.

Baoding Xinlongtongda Trade Co., Ltd. is located in the Hi-tech Development District of Baoding city, Hebei province. It was established in 1987, and covers an area of 27000 m2.

Ningbo Nathan Machinery Co., Ltd. (Renyi Casting) is a professional OEM manufacturer, established in 2005, specializing in the supply of die casting, lost wax casting, sand casting, precision machining and metal products. We supply raw casting to final finish product. We use tried and tested casting suppliers, but perform all secondary machining and QC operations in-house.

Our foundry is specilized in producing the pump components such as casing, impeller, bowls, shaft and other pump spare parts meanwhile we provide customers' designed pumping solutions for any pumping requirment.

Qingdao Xinghe Machinery Co., Ltd. Jointly manufactures and exports a variety of casting products for architectural, automotive, mechanical parts. We export to more than 20 countries on 6 continents and have been doing so for more than 10 years.

"Quality Products, Competitive Prices and Prompt Delivery" is our belief.

Lianyungang Yongsin Quartz Co., Ltd is a LYG-based manufacturer of IR Lamps, Infrared Replacement Lamps, and Shortwave IR Emitters and Components. With over 25+ years of experience in IR heaters and components, we can help you find you the right solution for your application.

As the professional tooling & Die making company group in China, Symbos has 3 manufacturing bases, 2 in Guangdong and 1 in Changshu. We can provide customers with products and services which not only meet their requirements in quality products but surpass their expectations each time. We pride ourselves in offering customers bespoke services at every stage.

We have two companies under our umbrella. The first one is?Ningbo Yinzhou Yunlong Xingxing Machinery Factory, established in 1993, located in Ningbo. This factory is a?professional mechanical processing facility specializing in various manufacturing processes. In 2016, we expanded by establishing?Ningbo Jixing Machinery Manufacturing Co., Ltd. To meet the growing demand for business development and international exports.

Junlong Machinery Co., Ltd. Was founded in 2014, the factory is located in Weifang, Shandong Province, covers a total area of 60, 000 square meters, the annual output of precision castings and machining finished parts of 20, 000 tons, the main materials are carbon steel, alloy steel, stainless steel and so on. With more than 200 employees and more than 30 engineering and technical personnel, it is a high-quality casting supplier integrating precision casting and machining.

Ningbo Jieda Molding&Machine Co., Ltd ( a TS16949 registered company) established in 2003. Located in Ningbo, China, with 8, 500 square meters manufacturing facility. It is dedicated to designing and manufacturing medium and large aluminum die casting dies and die castings for auto parts, E-pulse valves, LED Lighting housing, and numerous mechanical applications. Our capabilities include tool design; Casting; Machining; Finishing and assembly. As a member of China Die Casting Association, our annual capacity for mold is 180 sets and annual capacity for die castings are over 2000 tons.

Our Mission

Chemsize is a distributor of fused silica manufacturer Donghai Hechuang Silica Material Co. Ltd which have been devoted to manufacture high purity fused silica lumps, sand and fine powder over 30 years.

Weinan Test Import & Export Co., Ltd, established in 2009, is one of professional and leading OEM supplier and exporter of investment casting, sand casting, die-casting, forging and stamping in Shaanxi of China.

Zibo Jindong Machinery Manufacture Co., Ltd. is a complex manufacture enterprise integrating mold manufacture, fusible patterncasting, machining, and surface Polish treatment.

The group corporation has five casting factories which with powerful machining capabilities and one trading company, with an annual production capacity of precision castings more than 20, 000 tons. Specializing in the manufacturing of lost wax investment castings and machined parts in carbon steel, alloy steel, stainless steel and high temperature alloy, and so on. The products are mainly exported to Europe, America and other countries around the world.