?????????45*1800*C??q420qc???????????ж????
?????????????45*2200*8000 98??<BR>50*2200*8000 32??<BR>60*2200*7000 75??<BR>50*4030*555 98??<BR>70*2200*9500 32??<BR>80*2200*8000 56??<BR>6??1800??8000 98??<br><br>?????????????????????HR?? ??HB>450??????????С?????????ò????????????????????????????????????????120???????????????1.59??3.18mm????????????????????????
?????????????
45*2200*8000 98??
50*2200*8000 32??
60*2200*7000 75??
50*4030*555 98??
70*2200*9500 32??
80*2200*8000 56??
6??1800??8000 98??
?????????????
????????HR??
??HB>450??????????С?????????ò????????????????????????????????????????120???????????????1.59??3.18mm?????????????????????????棬??????????????????????????????????????
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?????????45*1800*C??q420qc???????????ж????
