Crownwell is a professional company of air compressors and drill rigs. Crownwell has two business divisions, one is Crownwell own brand products, the other brands are Ingersoll Rand, Hanwha and Others.

ShandongSQY Bearing Co., Ltd. Located in Ji'nan, is a professional bearing production company integrating R&D, production and sales. The company covers about 20000 sq. Ms land and has over80 employees, The factory has eight workshops, a measurement testing center as well as a life time test center. Since the establishment of the company, we have passed CE, ISO9001 certification.

Qingdao ZeRui Metal Co., Ltd. is one of the high-tech manufacturers specializing in producing all kinds of air-conditioning and refrigeration copper tubes, environmental friendly copper water tubes and copper fittings. Our main products are: Insulated copper tubes, copper pancake coils, LWC copper coils, copper water tubes, air-conditioning straight tubes and prelagged copper tubes. Our annual production has got to 10000 metric tons. Our products are widely used in air-conditioning and refrigeration, water and gas, heating, electrical and other fields. All our products are produced strictly as per ASTM standard, EN standard, JIS standard, AS standard and GB/T standard. Our products are selling well in more than 20 Countries, some of them has met warm reception in USA, Canada, Chile, Peru, Albania, Lebanon, UAE, etc.

Qingdao Megatro Mechanical and Electrical Equipment Co., Ltd.Is a Structure Steel, Power Transmission line steel tower, Telecom tower, related power materials, wind turbine, wind tower, power flange, forged products, casting, power fitting, conductor fabrication& export& import company.MEGATRO headquarter are located in Qingdao city, Shandong province, and plants located in Qingdao city of Shandong Province.

We are Bearing manufacturers.

RUIBO AUTO is company specialized in China bus and Truck parts. We can supply all kind of bus parts, especially for YUTONG, KINGLONG, HIGER, ZHONGTONG, FOTON, XML, YAXING, GOLDEN DRAGON and all kind of China truck parts like HONGYAN, FOTON, JAC, SINOTRUK, SITRAK, SHACMAN, HOWO, INVECO.