... 2.Long life; 3.has multiple protection system; 4.safe and reliable. More Detailed Descriptions:1, the surface of big power ... 2, the highly dense, compact structure. As the overall short and intensive, it is stable, the installation without brackets;3, ... each electric welded pipe fasteners, then cover with nut and flange, tube and argon welding fasteners and never leak. Fasteners seal to the scientific ...