NET BORU SANAYİ VE DIŞ TİCARET KOLL. ŞTİ.

First spring company in Turkey MAKTEL was founded by Mr.Çetin Şaman in 1969.First continuous brazing oven using contact welding and first roll forming for producing double wall tubes different than Bundy system were invented by Mr. Çetin Şaman in 1972. Mr. Şaman also introduced a completely new know-how roll forming which resulted in excellent cross section of the double wall tubing.Double wall tubing technology was improved by the inventor of contact welding Mr. Çetin Şaman.