ShenZhen Huimai technogy co., Ltd is a manufacturer with R&D, manufacturing and sales, products mainly include: Thermostat , Thermometer, Liquid flow controller, RPM tachometer, etc. Our manufactory passed the authorization and the audit of ISO9001 Quality System.Our products have passed FCC, CE and ROHS certification, mainly export to many places all over the world.We uphold the "integrity management, innovation development, superior quality, customer first" business philosophy, We also look to combine visions with clients both at home and abroad for mutual growth and benefit.