graded joint scale curve 刻度弧规

graded joint road 整型道路

graded joint seal 分级过渡封接

graded joint tube 刻度管

graded joint sand 过筛砂

graded joint mica 分级云母

graded joint size 分级规格尺寸

graded joint slot 梯形槽

graded joint ring 分次环