|
外徑
|
內徑
|
常用縫隙
|
孔隙率
|
長度
|
219mm
|
205mm
|
1-2mm
|
28%以上
|
3-6m
|
245mm
|
231mm
|
1-2mm
|
28%以上
|
3-6m
|
273mm
|
259mm
|
1-2mm
|
28%以上
|
3-6m
|
325mm
|
307mm
|
1-2mm
|
25%以上
|
3-6m
|
355mm
|
337mm
|
1-2mm
|
25%以上
|
3-6m
|
377mm
|
359mm
|
1-2mm
|
25%以上
|
3-6m
|
426mm
|
408mm
|
1-2mm
|
25%以上
|
3-6m
|