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欧美日韩精品一区二区三区不卡_内射人妻无码色AV麻豆_国产高清在线精品一区二区三区_亚洲精品成人久久久

Manufacture

2018-08-21 10:38:45 136

Production Process:

    manufacture relay core,various screw nuts and other hardwares by cold heading.

Production Equipment: 

    High speed cold forging machines,   Multi-station cold forging machines, Thread rolling machines.