Dear Purchase Manager, This is Winson from UTC Co., Ltd. We are a professional manufactory of Membrane Switches, Keypads, Touch Screen and PCB with 12 years experience. Our products are widely used: Industrial control, medical equipment, HMI and automotive industrial. If there is any item you are interested, pls don't hesitate to contact us. Best Regard! Winson Feng Guangzhou Union Tech Circuit Co.,Ltd Moblie/Whatsapp/Wechat:008618520143380 E-mail: salesswitch@163.com