china jinan dongyao testinstrument co,ltdis a professional manufacturer of testing machines and paper bobbin
equipments. In 1990, we joined forces with Taiwan Holi Inc. for the
production of spools and spiral paper bobbins; in 1992, we
successfully developed semiautomatic equipment for conical paper
bobbins and spiral paper bobbins. Our products are sold well
nationwide due to our top quality and excellent services.