If the treads are single return or no return, then cut the end rough end of the tread and apply a small amount of polyurethane or other finish to the end grain.

如果是單身回程或踏不歸路怡春院av，鑿底底的胎面粗糙同性恋的污污网站、少量用于聚氨酯或其他糧食整理到年底。