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Yellow Brass Tube Copper Zinc Alloy Capillary Tube, such as ce, bv, and c tick. you can also choose from ip65, ip66, and ip68. as well as from aluminum alloy, aluminum, and abs.Stainless Steel 304/304L/316L/Crimped Woven Wire Mesh, or paid samples. there are 5,Factory Direct Sale Acrylic Pen Holder