... corrosion resistance 4.can be reused 50 times GMT formwork is the best substitutes of plywood and has the perfect mechanical ... sawed,incised,nailed, and will not delaminate. It is widely used in slab,beam,wall,stair and column. Compared with plywood ... after stripping which ensured nice surface of construction. What’s more, GMT board is 100% recycled to protect environment. construct shuttering