The front and back door for sound insulation box is push and pull door. The back door and side doors are opposite to each other. Front and back are equipped with sound insulation monitor window.

Left and right side is active material exit gate with rolling wheel guide.

One set each of Low noise pulley air exhaust.

One set of inner connection power switch socket.

One set of advertisement sign (firm name will be provided by customer.

High level ICI computer paint dispersing anti-rust treatment (colors are optional).

Three prevention standard materials are used on sound insulation box with noise control.

International standard 2. 0.  3.0mm rolled steel plate.

International standard 0.6mm ×dia. 3.0mm whole punched zinc plated plate.

Imported Rockwood Rock wool （ 100kg 、 M3 × 50mm ）sound insulation, absorption, fire proof environmental cotton plate.

Imported PEF （ 10mm ）anti-flammability noise elimination plate.

High density anti-flammability sound absorption foam plate (20kg /M3 × 10mm ）produced by Taiwan manufacture.

Noise effect 75-80 decibel (single source) reaches the labor protection regulation and standard.