On May 16th – 19th, the 31st International Chinaplas Exhibition was held in Guangzhou as scheduled. Our company brought a series of advanced rubber and plastic laboratory testing equipment, such as film blowing machine, single screw extruder and 3D printing filament extrusion line to attend this event. Many domestic and foreign customers came to visit our booth and won great concern and praise from most customers. Meanwhile, we also communicated with our partners and customers, we learnt more about the demands of the rubber and plastic industry. We will continue to research and develop experimentally precision instrument to be better and more practical.