产品说明
1、Prlducts introduction
　　Plastic steel footstep climbing ladder is the latest engineering products, which researched, designed, and developed by our company. It has outstanding characteristics good look, strong sliding resistance, excellent, it also enjoys other performaces strong water-proof, corrosion proof, solvent proof, alkali proof, oil proof, and other chemicals.
　　The advantage of this product: once invest, maintenance unnecessary.
2、Products main use
　　It is suitable for inspection of all kinds of wells,water towers, civil defenses, slope, undergrounds, tunnels, civilian construction, industrial building ect,as the fixed climbing-up and down ladder.
3、Products main performance index
　　tensile intensity>610MPa
　　yielding intensity>380MPa
　　extensibility>21%
　　good cold bending performance under>180^o
4、installation method
　　According to climbing ladder size,opening in the steel mould, cast concrete while the ladder is being poured in, the distance between step and step is 30-35cm, and outside part of the ladder is not shorter than 10cm.
5、warning items
　　According to proper use method, install and operate, when the concrete not finally coagulated, the climbing-up and down is forbidden.