A ONE UNION CO., LTD. was established since 1984. "Sincerity, Mutual aid, Benevolence, and Modesty" are our basic operation principles. Our turnover is growing every year. We are proud to say that we are the leader in this field. However, we are not satisfied with it. We are doing our best to research and develop the products, and reduce the cost. It makes our products popular all over the world.

We have past the quality audit of ISO9001:2000 since sep.2001 because of our consecutive effort. It brings all the customers more confidence to trust our products.

Our main products are as follows:
THERMOCOUPLE & RESISTANCE BULB, SCR PHASE CONTROLLER, TEMPERATURE TRANSMITTER, TEMPERATURE PROBE, TEMPERATURE EXTENSION WIRE, ETC. We also supply their accessories and parts, equipments as well to other suppliers in this field. Furthermore, we supply trading companies with "OEM" mode.

We know the market conditions. Regarding other relative products, such as DIGITAL THEMRMOMETER, TEMPERATURE CONTROLLER, STAINLESS STEEL TUBE, CARTRIDGE HEATER, INFRARED CERAMIC HEATERS, ETC., we can specially serve our customers' needs.

In accordance to the above, please feel free to contact us at any time. We will do our best to serve you immediately.