... 所以1/8=3.175mm當要找1/2時等於4/8等於4x3.175mm=12.7mm|維勳螺絲股份有限公司. ... 1/16″, 1.5875, 5厘, 25/32″, 19.8438, 6分2厘5, 2-1/2″, 63.5000.
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