Wuhan Tongchuang Plastic Machinery Co., Ltd. is willing to cooperate with customers in Puerto Rico to open up the market. We provide high quality non stop screen net changer products, preferential factory prices, and professional after-sales services to provide impetus for the rapid development of your company! shopping bag market with start-up of new speciality kraft paper machineand paper, contributing to a better world by making innovative packaging and paper  Over2,500 Polystar machines are now operating in more than 70 countries worldwide since the establishment of the company in the year of 1988. Polystar provides Bag Making Machine products and services worldwide to all economic sectors including packaging,