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Founded in 1976 a manufacturer company of 15-20 employees
Has a ISO9001:2015

Sigma Metallurgy, was founded in 2021 by two engineers with more than 20 years of experience, and today it continues its activities as the solution partner of global companies from different sectors in investment casting with its staff of 30 people. From the beginning up to date, with expert staff, innovative approaches, and investments, Sigma has become able to offer its customers the finished product service with a quality perspective at international standards.
Sigma Metallurgy can offer services such as mold design and manufacturing, machining, coating, and assembly with customer requirements, as well as implement and report destructive and non-destructive inspections within its own structure and through accredited organizations.

Molde Matos S.A. is an industrial company in the light metalworking sector, manufacturer of molds for plastic injection.
Our molds are used in industries as diverse as automotive, household appliances, electronics, toys, packaging, piping or housewares, and we can manufacture molds from 30kg to 32 tons.

Injection mould making & Engineering

Qingdao Bestower Machine Co., Ltd. is located in Beiguan Industrial Park, Jiaozhou,Qingdao, plant area of more than 120,000 square meters. The total assets ofBestoweris 70 million US dollars. Bestower has more than 300 employees, with 76high skill leveltechnical personal. Bestower has always been commited to thedevelopment and application of fabrication technology. Weare well known for ourprofession in design, manufacture and installation ofall kinds of steel towers and steel structure.
Bestower focus on supplying all kinds of steel towers and steel structure. The steel towers including communication steel tower, transmission steel tower, TV tower, radar tower, wind tower, etc. The steel structure including house steel structure, bridge steel structure, car-parking steel structure, warehouse steel frame, steel truss, steel beams, etc. We can also make and develop new parts according to customers' drawings and detailed dimensions. These products are widely used on mine, factory plant, oil industry, shipbuilding, marine engineering, airport project, construction industry and so on.