... larch, okoume, spapelli, cherry, russian red pine Solid wooden window/ doorAluminium solid composite window/ doorMain colors for solid wood doors and windows: ash, larch, okoume ... spapelli, cherry, russian red pineMain colors of aluminium materials for solid wood doors and windows: coffee, dark gery, white, steel- ... 5Soundproof CapabilityGB/T8485-2002, Grade 4, 35≤ RW<40 solid wooden window/ door