... from B grade roving, mainly used for gypsum board Fiberglass chopped strands, cut from fiberglass roving, ... from B-grade roving. At the beginning roving machine works, fiber diameter is not very regular; during ... plastic, FRP, GRP, car parts, concrete, cement, gypsum boardFiberglass chopped strands have been delivered to Thailand, Veitnam ... China, Egypt, Angola, etc. chopped fiberglass for gypsum board