The FRP hull inflatable boats have 2 row grooves (upper, lower) at left & right side and 1 row groove at front side. Also Tube has protrusion parts to meet with grooves. These grooves of FRP hull and protrusion parts of Tube were made to be fully steady and easy on assembling. The assembling work is very easy.
FRP hull inflatable boats feature a fiberglass rigid hull mated to an inflatable collar. This allows a conventional deep V-hull shape at the bow, flattening out to common planking sections aft. The concept marries the famous buoyancy and stability of an inflatable boat with the excellent handling characteristics of a conventional fiberglass hull.