folding aluminum step ladder telescopic ladde

Description

Industrial grade glass fiber profile, secret formula, proprietary seven-layer high-strength glass fiber production process, has very good strength and toughness, at the same time has good corrosion resistance and good insulation, resistant to ultraviolet light and aging Make use longer and safer, and pass the AC****0 volt and DC***0 insulation test
 
Adopt ***1 high-strength aluminum alloy material, the strength and stress pass EN**1 standard * Ultra-wide horizontal pit pattern pedal to maximize the anti-skid performance, while avoiding water accumulation, excessive load bearing