“Half Pipe Z Type Welding Method” which we applied in 2012 has gained national invention patent, the patent No.: ZL 201210504363.X.

         Our research and development team is dedicated to the research and application of pressure vessel product and its fabrication technique for many years, and improve products property  continuously. We successfully research special welding method of half pipe, and gained invention patent certificate issued by State Intellectual Property Office of the P.R.C (SIPO), which means we step on a new stage of special welding technique, and we got a new breakthrough on pressure vessel manufacture technique.

         Through these years efforts, till now, we have own 13 self-dependent innovation patents in total, in which 1 invention patent, 12 utility-model patents. These patents give power in company future development, upgrade our products technical level,  improve products property, strengthen company competitive ability, and provide strong technical support for company further development.