... down, there are two type of Springboard (type A and type B),Type A is integral springboard, Type B is removable(Facilitate collection ... accommodation , small portable aluminum ladder, Products comply with CB * 3116-82 standard, With a lightweight, secure , and high intensity.Technical ... .512500450350B1515000600500 Aluminm Wharf Ladder For Marine Mooring with BV type A/B