Dalisheng 13 annos dives in consilio et productione usus est Carborundum anti-skid FRP stai nosing anti laminam lapsus habenam
Gravia genera habemus;
1. Corundum Stair nosing anti-lapsus habena
2. Carborundum aggerem anti-lapsum habena
3. FRP/fibra vitrea anti-skid lammina