Gem watches bearing factory in Tianjin branch

The plant in the early 1970s the completion of the old Plants to red artificial corundum as raw material, raw material from the ninth glass Tianjin, Yantai, Shanghai and Hanzhong, so watch for bearings. Due to mechanical table by Zhejiang been replaced by electronic forms , precious Stones bearing surplus, so in 1986 the establishment of gem ring Workshop to meet the needs of the consumer market.