The Hangzhou Qianjin Gearbox Group Corp. is China's major manufacturer of gearings, as well as producer of powdered metallurgical materials, and one of the country's top 100 machine-building...
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The Hangzhou Qianjin Gearbox Group Corp. is China's major manufacturer of gearings, as well as producer of powdered metallurgical materials, and one of the country's top 100 machine-building...