Mingzhu company's electrofusion fittings adopt international advanced techniques Adopting special purpose material for PE pressure pipeline Special mould design guarantee the precision and stability for the pipefitting size Adopting the auto-coiling tech to guarantee the heating wire's average tension force, to reach stable quality and get the fine welding effect. Concealing the heating wire can improve the fittings' resistance for external force shock greatly. And avoid the short circuit due to extruding by the heated PE material flow. The welding effect can be observed by the observation hole The bar code includes the optimum parameters and provides the convenient welding method. Dn(mm):32,40,50,63,75,90,110,125,140,160,180,200, 225,250,315