... RH2. Using 1mm and 1.2mm cold rolled plate of bao steel, reinforcing structure design, high intensity bearing ... etc.45%--55%Video cameras, lens, camera, computer equipment, musical instrument, CD, floppy discs, video recorders, microscope, telescope,35 ... appliance, electronic product, semiconductor, capacitor, PCB, battery, precise instrument, optical measuring devices, and etc.Below 35%Reagent, special ...