The effective width is 1.15m, the length is customized according to the customer's requirements, and one side is punched in three rows

The conventional hole diameter is 2.5mm and the hole spacing is 5mm, arranged at an angle of 60 degrees.

Structural advantages: socket type splicing, convenient installation

Product characteristics: reduce the collision noise on the metal surface by changing the variety and density of the thermal insulation core material, and suppress the noise generated by resonance through the noise reduction sound insulation cotton of the core material. Through the regular perforation on the metal plate and the combination of sound-absorbing materials in the plate, different sound-absorbing effects are produced. Through experiments, this noise reduction effect produces a noise reduction effect of no less than 29 DB according to the frequency of external noise and the thickness of core material