PiTAC Int'l Machinery Co., Ltd. was established in 1983. With our comprehensive expertise in organization of production lines and machine design, we have been dedicating ourselves in the field of Plastic Extrusion / Injection Process for more than a decade. For the Plastic Foaming Extrusion process, Freon blowing agent has been used since 1985 and now replaced by Butane in PiTAC 's extrusion system. The latest developed has been the re-introduction of a new Type of Freon (R142, R134) again. Moreover, PiTAC constantly develops new kinds of blowing agents and processes in an effort to make production safer, more efficient as well as more economical.