亚洲图片欧美一区_中文字幕免费一区_国产欧美一区二区三区网站 _久久一区二区三区国产精品_欧美韩国日本综合_国产片一区二区三区_国产精品另类一区_亚洲成国产人片在线观看_久久久亚洲精品一区二区三区_国产网站一区二区

Qingdao Decelerator Factory locates at the east coastland of China. It is a specialized factory to produce reducers, ring-rolling machine and wedge cross rolling machine. It has fixed assets of more than 120 million RMB and working capital of 250 million RMB. The factory is 68,000 square meters larg...More