Our production
Edged glued panel and FJ panel (Birch glued sheet)
British frame grade
Select
1 Common
Chinese grades 1(AA)-2(AB)-3 (BB)-4(BC)-5(CC):
ASuper (without knots)
Grade A (1 knot per 1 linear meter)
Grade B (knot without quantitative restrictions)
Grade С (knots + false heartwood)
Birch firewood