... plank, BC grade, unfinished Russian Oak big plank is our regular products since 2007, we have ... a toplayer factory, and imported around 50X40GP walnut logs from American! we produced the size from 10/4x70x490 to 21/6x450x2500! that's ... , 21/6x400x2200MM21/6X450X2200if you're interested, please contact me! Russian Oak BC big plank