2-butene (CIS), CAS# 590-18-1, 99.0%, DOT standard cylinder as the package.

The following is our product line.

1. GAS FOR ELECTRONICS:
1.1. Halocarbon: Tetrafluorocarbon (R14), Octafluorocyclobutane (C-318), Trifluoromethane (R23), Difluoromethane (R32), with the purity of 3N, 4N and 5N.
Hexafluoropropene (C3F6) with the purity of 3N
Sulfur Hexafluoride (SF6) with the purity of 3.6N
Nitrogen Trifluoride (NF3) with the purity of 3N, 4N
Methyl fluoride (R41)with 3N
Ethyl Fluoride(R161) with 2N
1.2. 2N, 3N Carbon Monoxide

2. SPECIALTY GAS
2.1 3N, 4N Liquefied Ethylene
2.2 3N Carbon Dioxide
2.2 3N Propane
2.3 3N H2S, SO2.
2.4 Refrigerants R600a(Iso-butane), R290(Propane)
2.5 N-butane
2.6 Cis-2-butene, Trans-2-Butene

3. GAS MIXTURE
3.1. Silane Mixture upon the requirement.
3.2. ETO Mixture