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2013????????????г?????????????????????????????????????????????????????????????????????????????????????????????????????15?????и?????????????100??????????????????13.6?????????????????????С??
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??塢??????????
???????????? d ?????? mm ????????????????????????b????d?????? mm ????????
????????й涨??????磬??????????У? 1mm ????壬?п???600??????2000 mm ??650??2000 mm ??700??1420 mm ??750??1500 mm ??900??1800 mm ??1000??2000 mm ???
???????????3.0*4*8??Q420q???????嵥λ????????
