Siward
Siward Crystal Technology Co., Ltd. was founded in 1988, specializing in the quartz frequency control element of research and development, design, production and sales.From artificial crystal rods grow up to the final product, through the best of the team and advanced production technology, to establish a complete product line, include artificial crystal, electron WAFER, SAW the WAFER, and quartz crystal, crystal oscillator, crystal filter, temperature compensation and voltage control products, etc., to improve the supply chain system, provides the omni-directional service for the customer.