The 10th Zhengzhou Plastic Expo of the large-scale domestic plastics exhibition in 2020 will be held at the Zhengzhou International Convention and Exhibition Center on July 8-10. Dongguan Hongtuo Instruments will participate in this Zhengzhou Plastic Expo. Dongguan Hongtuo Instruments is a professional manufacturer of various The manufacturer of various physical property testing instruments has developed and produced various kinds of tensile testing machines, electronic density meters, melt index meters, impact testing machines, Vicat thermal deformation softening point testers and other instruments for many years.