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2022

zipper buying guide

zipper buying guide When choosing a zipper for clothing, not only should we pay attention to the difference between the color of the zipper tape and the fabric, which is commonly referred to as the color difference, but also the color fastness of the…

产业: 他人
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Glass Cylindrical Rod for Light Guide

Glass Light Guides with Cylindrical, Square, Tapered or Any Special Shape Glass cylindrical rod light guide is a device that transmits light from one light source to another point at a distance from the light source with minimal loss, widely used in…

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