Over the last 20 years, POTOP has built an interdisciplinary engineering team of polymer rheologists, mechanical and electrical engineers and has sold state of the art machines to customers all over the world, mainly universities and research units of global chemical companies< POTOP manufactured with independent intellectual property rights of polymer material rheology workstation, with 4 world's first technology and 10 invention patches, can carry out the extrusion capillary rheological performance test, refining torque rheological performance test, as well as extrusion, blow film, compression film, casting, pelletizing, blending, refining, Injection molding and other molding processing experiences, to provide users with the rubber and plastic materials processing performance testing of a complete solution< POTOP to ^ ^ high technology, high starting point, high quality, high efficiency ^ ^ for the policy, here to technical progress, continuous innovation, was established so far has successfully developed a ^ ^ fish eye ^ ^ tester, masterbatch display tester, small precision extrusion casting experimental machine, small precision extrusion blown film experiment l machine, Polymer materials, film, unidirectional/bi directional stringing experimental equipment and other new products