... and down, there are two type of Springboard (type A and type B),Type A is integral springboard, Type B is removable(Facilitate collection ... , small portable aluminum ladder, Products comply with CB * 3116-82 standard, With a lightweight, secure , and high intensity.Technical requirements ... widen or decrease according to the customer's requirements. Type A8 means: length 8m , wid 0.6m Integral aluminum ...