Zhejiang demaji machinery co.,ltd. is specialized in the production of series double screw& barrel, with its huge scale production and equipment, technology, science, well-made, strong technical force, we not only provide fittings of machines to foreign and national machinery plants but also undertakes processing according to the samples by fragmentary We do global sales such as Russia, India, Korea, Turkey, Middle-East and so on. In line with the policy "save resources for the country, enlarge profits for customers, create benefit and harmonious development for social prosperity", DAMAGE" staff after continuous efforts andSweden engineers cooperate with research, in the original PTA nickel alloy spray welding technology improvement and the development of a long wear-resisting, high corrosion resistance of the two big quality series screw. In a foreign country, high corrosion, high fillPVC, sheet, pipe, sheet material, profiles, wood and plastic, hang wallboard, etc, the quality of our exclusive market screw to super durable service life corner the market Wells. The company strictly through IsO9001; 2000 quality management system, the product after the famous at home and abroad for a long time and uses the plastic Enterprise National Authority test center and the detection experts gradually assess its technical indexes to attain the international standard.