·采用进口优质S2合金钢制造
·高硬度,高扭力,高精度.
·规格:75*6.35*4.5*#1+,75*6.35*4.5*#2+,75*6.35*6.0*#2+,100*6.35*6.0*#2+,150*6.35*6.0*#2+,
    200*6.35*6.0*#2+ , 250*6.35*6.0*#2+,50*6.35*2.5*2.5-,50*6.35*3.0*3.0-,50*6.35*4.0*4.0-
    50*6.35*5.0*5.0-,50*6.35*6.0*6.0-,50*6.35*3.0*#0+,50*6.35*3.0*#1+,50*6.35*4.5*#1+,50*6.35*4.5*#2+
    50*6.35*6.0*#2+