Company Description: Our company Jiaxing JingKong Electronic CO;Ltd(JJK) is a professional manufacturer engaged in producing Quartz monitor crystal and Quartz crystal microbalance from China. We hold 5Mhz&6Mhz Quartz crystal with three kinds of electrode material- gold , silver and alloy , excellent for optical coating and metallization. Products applied to different vacuum coating machines from America, Japan, Germany, well accepted by the customers from optical vacuum coating , LED field and other optic, medical |