three layers 42*42*10 five layers 42*42*10 three-layer 45*45*4.3 three layers 36*36*5 three layers 56*56*6 five layers 56*56*6 three layers 60*60*6 five layers 60*60*6 three layers 30*30*8 three layers 33*33*8 three layers 31*31*5 three layers 31*31*3 three layers 32*32*11 five layers 39*39*4.5 five layers 50*50*4.3 five layers 56*56*8 five layers 36*36*5 three layers 45*45*6 five layers 45*45*6 three layers of good material 36*36*5

ordinary