* spindles are made of high carbon steel and machined by cnc lathe, having the capability of withstanding clamping, which prevents the internal tube from indenting and influencing the flow and matching. * the forged one-piece housing doesn!|t break easily, having high plasticity and utility and beautifies the overall outlook. * machined by powerful toothed-clamp, the fittings are tight and can bear high pressure without loosening, extremely safe. * 3 pieces integrated formation reduces costs. * our company also has plastic injection forming machines, special for making all types of plastic parts, fittings and plugs, etc.