Soundproof wall material: aluminum, galvanized sheet hole: Hole micro perforated louvers sheet thickness: 0.8--1.0mm (according to production needs) soundproof wall finished thickness: 4-10cm (according to production needs) the width of the noise walls : 40cm (according to production needs) the length of the production process as required Finish: high-voltage electrostatic spraying (painted in different colors according to the need) I can be the user-supplied material, thickness, diameter, pitch, arrangement, punching zone size, four weeks left side size production. And the metal plate leveling, roll, shearing, bending, edging, argon welding forming. I plant production and sales of various sound barriers, soundproof walls, can be given reference solutions according to the customer the actual situation.