Shenzhen Hanwei Gangtai Jewelry Machine Co., Ltd. was built in 1992 .After several years of harding working , it accumulated plenty of experience in producing and operating. We are a specialized manufacturer of jewelry machines and equipment from furnaces to finished goods and also manufacture various kinds of 925 silver chains and 316L stainless steel chains. Based on excellent technique, nice fashion style and high quality, our machines and chains are sold well all over the world. Our ...