Company Description
Longhua Shuangyi Metal Tools Co.Ltd owns the unique technology of gas filling and gas-loaded welding that our gas-filling accuracy reaches 0.1g.We can fill mixed gas including CO2、N2、Ar、He、SF6 even the mixed gas .All products we supply have been tested by 65℃ water temperature test and its leak tested on negative pressure. The dual-guaranteed products are always standing for our confidence. We provide an effective guarantee when you use our products. Meanwhile, your prompt reply will be very appreciated!