Six Star Gears Co., Ltd. ( Yieh Chen Machinery Co., Ltd.)
We offer the best quality of metal working machine tools, such as (1) thread rolling machinery- cam driven & eccentric machine, multi forming & spring making machinery, cold roll former machine, vertical & horizontal honing machinery, friction welding drilling machine, boring & tapping machine, coiling & wire flat machine, chamfering & de burring machinery, cut off and end ...