The city of guangzhou and the experimental analysis instruments ltd. (known as the guangzhou commons), the main camp for the membrane double stretcher, the mini-lender, the mdo vertical stretcher, the tri-storey blower, the co-crowder, the rectangular transducer, the mini-scrowder, the mini-screw extruder, the mini-screw, the lab tri-pressurizer, the lab double-stamp extensioner and the mini-clipper. High performance membrane base materials for lithium batteries, photovoltaics, hydrogen energy, marine engineering, etc。