颜色分类:
?1/4X1/4
1/4X5/16
1/4X3/8
1/4X1/2
1/4X5/8
1/4X3/4
Color Classification: 1 / 4X1 / 4,
1 / 4X5 / 16,
? 1 / 4X3 / 8,
? 1 / 4X1 / 2,
1 / 4X3 / 4

? 1 / 4X5 / 8,