Zhangjiagang Tongzheng Machinery Co. , Ltd. is located in Zhangjiagang City, is a professional manufacturer and designer of plastic and polymer processing and molding equipment for laboratory. The company is committed to the laboratory extrusion molding equipment development and research. Our main products are: Experimental Film Blowing Machine, experimental sheet molding machine (extrusion molding) , laboratory tape casting machine (extrusion molding) , laboratory three-layer film blowing machine, multi-layer sheet testing machine and other related plastic auxiliary machinery. Our purpose is the integrity-based, innovation as the source, Tongzheng machinery wholeheartedly welcome your inquiry and patronage.