we introduce advanced computer digital controlling equipment, the products can be made in form in one process and have high precision, small error and high quality. the types of material: stainless steed, aluminum cold and hot copper and pvc, board etc. the kinds of hole, long, square, round hexagon, scale stretch-special shaped hole. our production is processed by advanced manufacture computer-controlled digital technology. we finish the production for once time. the production has high precision, low error and high quality. the hole diameter (0.3mm-100mm) can be made equal with the thickness of the board. our production of punching-hole screening board is widely used in protecting from ambient noise where the highway, railway and subway come through the city. it can also be used in building wall power station .factory ceiling wall plate and other source of noise in order to sound absorption. other uses: the decoration of stairs ,balcony and environmental tables ,protecting cover for machinery equipment, the cover of sound case ,screen of grain ,fodder ,mine and football field ,i-shaped screen kitchen utensils ,such as stainless steed fruit basket, food cover and fruit dish etc. market goods shelf round hole wire mesh. and so on .