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以导管的内径(inch)编排的序号 以导管的周长(mm)编排的序号 以导管的外径(inch)编排的序号 相当于导气管外径×3.14 近似于导气管内径×4
labor and education transportation and insurance utilities and repairs products and services
以导气管的外周径(mm)编排的序号 以导气管的外直径(inch)编排的序号 以导气管的内直径(inch)编排的序号 相当于导气管外直径×3.14 近似于ID×4+2
进给速度为 0.75inch 进给速度为 1.5inch 进给速度为 0.75mm 进给速度为 1.5mm
return privileges all the factors . buyer and seller money.
1inch 2/3inch 8.8∗6.6mm 1/2inch
公制；mm 公制；inch 美制；mm 美制；inch
three-inch three inches three-inches three inch
increased cut rose dropped
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