There are 16 national standard matter approved by National Quality and Technology Supervision Bureau, including standard gases used for examination in environment, medical instruments, petrochemical,
fertilizer,
power, mine, metallurgy and machinery industries. Besides, we are developing
other standard matter needed by new technology and technics. 2.Industrial concentration
laser gas（Combination of F2,Ar,Ne, He and the like）；
Automobile light gas（CH2Br2+Kr,CH3Br+Kr,Ar+N2,Ar+N2+CH3Br,etc.）；
Welding protection gas (Combination of CO2,H2,O2 and Ar)；
Sterilization gas（Ethyene oxide+CO2 or Freon）；Grain fumigation gas（PH3+CO2).
Mine exploration and heat processing gas；
3.Gas-related products
stainless steel valves applicable to highly pure gas and erosive gas, and trimmer valves used to
standard
sample collection. 4.Electronic highly pure gas and concentration
5.Highly pure gas and organic gas
Information Query:Speed Chem
Advanced gas testing system
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Address：1-1,248#,Minzheng Street
,Shahekou District,Dalian
Post code:116021 Tel：0411-6760160 4645464 Fax：0411-4645464 E-mail:001@dl-gas.com |
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