(1)Be used in regulation, temperature control and speed regulation, light etc. (2)TDGC2 - J, TSGC2 - J appearance is hexagona product descriptionRegulator is used in pressure regulation, series of temperature control and speed regulation, light and power control, etc. Application is widespread, TDGC2 - J, TSGC2 - J product appearance is hexagonal, belong to the old type products; TDGC2, TSGC2 ...