Printing - Graphic Arts

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The unit comes complete with robust rules & dies which are of the same quality of those used with a full scale cu

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​IDM’s precision cutter is designed to assist in the easy and accurate cutting of sample specimens for both crease st

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摩擦系数是指两表面间的摩擦力和作用在其一表面上的垂直力之比值。它是和表面的粗糙度有关,而和接触面积的大小无关。依运动的性质,它可分为动摩擦系数和静摩擦系数。

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