Deyang Dewars

1.Are you factory or trading company?
We are factory located in Jinan of China.
Special gases factory from 1998. (Jinan Deyang Special gases Co.,Ltd)
Gas equipment factory start from 2011.(Jinan Deyang Cryogenic Technology Co.,Ltd)
2. how can we control the quality?
* 100% Evaporization rate test to make sure the vacuum quality
* Evaporization rate lower than 2%
* All the insulation material are anti flaming to make sure the safety using. can we guarantee the quality?
* Cylinders: One year for wearing parts and three years for cylinder vacuum after shipment.
* Nitrogen generator: Three years.
* Gases: according to the quality certificate.