... 1) material: eco-friendly alloy, copper or silver as per customer's request2) plating: silver plated or others as per customer's request3 ... Holykay Jewelry Manufacture Co., Ltd. is engaged in 925 sterling silver jewellery & fashion jewellery manufacture. Our factory is located in ... are good at many kinds of material. such as sterling silver, copper, alloy, pearl, opal, gemstone, and so on. About ...