heating system (radiator)

a.Steel materialIt adapts mild steel which produced by Anshan Iron and Steel Group Corp.. Steel tubes have excellent flexibility, smooth welding and also no obvious bump on surface. The hydrostatic pressure test reached 2.0Mpa.b.Surface Anti-corrosiveIt undergoes low-temperature phosphating surface anti-corrosive process., of which formed crystalline dense phosphate coating on substrate and formed a strong corrosion resistance.c.ERWERW is the most advanced welding technology without slag which using three-phase rectifier DC NC resistance welder. Great power of equipment, high control precision and strong welding consistency ensures the quality of welding. d.Powder coating technique and powderWe select the most advanced coating and stoving equipment with strong automation in China. And we select to use pure polyester powder from NIPPION, the most well-known company in coating industry. More than 80% raw materials of this company are imported from overseas and achieved national environmental standards.e.PerformanceThrough a special process so that the diameter of radiator water hole enlarged to 17mm, which greatly improved the water flow through the radiator tube, also increased the performance of radiator heat dissipation and prevented from clogged waterways when working.f.Quality assurance systemThe quality control of manufacturing process implemented in accordance with ISO9001:2008. The geometrical tolerance is controlled by tools, each radiator unit undergoes water pressure test at least three times.