TS logo and CS logo are special equipment storage tanks through the Quality Supervision Bureau inspection of the inspection mark, CS refers to the special equipment manufacturing supervision and testing license, TS refers to special equipment manufacturing license. General can pass the quality supervision unit test qualified gas storage tanks, gas storage tanks nameplate on the upper right corner will be stamped with the logo test qualified steel seal.
Previously, most of them were stamped with the steel seal of CS, but now they are unified to TS. As long as the tank nameplate stamped with: CS or: TS steel seal, that the tank has been Quality and Technical Supervision Bureau of Special Equipment Safety Inspection and Testing Department supervision and inspection of qualified, and agreed to leave the factory.