It is made by the best gas cutting factory in China, which is the OEM producer for many international brands. The quality is very stable, and widely used in braze welding field. The default connection is CGA600(1"-20 UNEF) , it is popular in most of the world. We also provide a CGA600 to 7/16"-28UNF adaptor for option, which can be used with Rothenberger MAPP cylinder. It is profeesional 3 pipes MAPP/Propane Gas Welding Torch. ProductSiteLaunchDate : 2017-06-20T07:00:00.000Z Style : Torch UnitCount : 1