ZHUZHOU TONGYUAN INDUSTRY CO., LTD. is a joint-stock enterprise with science researching and developing, operating importing exporting service. Our products includes insecticide, herbicide, pesticide intermediate many chemical products. company has active compound emulsifiable concentrates so on, forms the whole ...

OYRSA GNC has been in the cng industry for the last 25 years, being at the present one of the leaders in the main markets. Currently, the company manufactures cng equipment for filling stations, cng conversion kits, and systems for conversion of diesel engines.