... smoothness and dimensional precision. Currently a variety of copper or brass pipe fittings are produced by high ... materials that Donrex offers are alloys of aluminum, copper, zinc and magnesium. Zinc castings can be made ... Max50kgsSurface treatmeentssand-blasting,polishing ,powder coatDie casting mouldsMould featureAdvanced design, Novel tructure, High precision, Quality materials, Long lifetime ...