Part 1:Product Introduction
     This product is based on the material of the metal ladders produced in Germany, which is used for scientific analysis and trial and error. In combination with the actual situation of non-ferrous metals in China, the materials are made of high strength aluminum alloy. The ladder is divided into upper, middle and lower sections. The ladder is included in the middle ladder, which is included in the ladder, which is limited by the support of the legs. The side board of the middle ladder is equipped with a chute, and the lower end of the ladder is equipped with a guide plate, which allows the ladder to rise and fall flexibly to prevent deflection.
    The ladders consist mainly of ladder, middle ladder, ladder, support rod and lifting device. The lifting device consists of wire rope, nylon rope, pulley and leg brace.
Part 2:Use  forÂ
    The aluminum alloy ladders are mainly used for daily training, emergency rescue and fire fighting operation. It can also be used in factories, mines, multi-storey buildings, etc.
Part 3:Product specification
| Model | Material | specification | Work length(m) | Shorten length(m) | weigth(kg) | Color |
| TSL12 | aluminium alloy | three sections | 12 | 5.6 | 75.9 | silver |
Door panel: door panel is made of stainless steel 304 with no frame. Core materials are paper honeycomb, aluminum honeycomb, PU, EPS and etc. The installation sites of door lock, door closer and hinge are reinforced with square tubes of more than1.5mmthickness which are compression moulded by special technology.
Door frame: it is made of completely stainless steel 304. The connection types with wallboards are double-clip type and aluminum connection. The former is applied mostly to machine made wallboard and the latter hand made wallboard. The accessories are double window and lift type sweeping bar. The lock can be famous door lock or the owners can select lock brands themselves.
Specification: common sizes 800X2100, 900X2100, 1500X2100 or1800X2100, can customize to customers` requirements, the materials can be selected according to customers` requirements such as306Lor other special materials.
Features: the stainless steel 304 door we produced are of elegant appearance, sturdy and durable, acid and rotting resistance and thermal insulation. It is the first choice for high-end projects at home and engineering concerning foreign affairs that requires for anticorrosion and high quality such as electronics factory and food factory
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Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.highspeedshutterdoor.com