The double wall type design by the basic module, the roof, the rear panel, the side bar, the foundation is composed. The bolt is fixed by the inside, the double wall type gate has the bikini fixing device, after closes the gate not to be able to see the bolt from outside, eliminated entered the cabinet by the compulsory measure weakness. Outside side kneading board (spacing 25mm) the band provides ventilates the channel, supports the cabinet internal heat change and may reduce the sunlight illumination the influence. The roof panel has all around stretches out 25mm high 75mm to obstruct the rain awning, obstructs the rain awning to have the integrity well ventilated to clamp the trough, guarantees the gas the exchange. The foundation may use the entire block or divide three parts of dense closing boards to seal. High protection rank (IP55), fireproofing is comply with the international UL standard. Comply with GB/T 19183 and IEC61969 standard Surface treatment: special powder coating. Anti- ultraviolet radiation and anti- erodent. Material: high quality chromed Al-Mg sheet, excellen capability of anti-erodent. Color: the cabinet body is RAL7035; the base and the top are RAL5015. May carry on the structural design according to the customer request. Order code (model) width x depth x heigh (w*d*h):TT-OD-D 1750X700X1300mm (the height including the base 100mm)