... windows: ash, larch, okoume, spapelli, cherry, russian red pine Solid wooden window/ doorAluminium solid composite window/ doorMain colors for solid wood ... , dark gery, white, steel-like electrophoresis, wood texture paintingResistance to wind pressure capabilityGB/T7106-2002, Grade 7, 4.5≤ P3 ... CapabilityGB/T8485-2002, Grade 4, 35≤ RW<40 solid wooden window/ door