2018?“????”?????????
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A?1mm-2mm,0.4M
B?1.6mm-3mm,0.6M
C?1.5mm-2.0mm,0.6M
D?2mm-3mm,0.8M
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A?30?150mm-300mm,1-1.5
B?30?150mm-300mm?1-1.2
C?45?130mm-200mm?1-2
D?20?160mm-500mm,3-5
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