| Accessories of waterclosets and urinals坐便器及小便器的附属件 |
| American market |
| 1. ANSI Z124.5-1997 American National Standard for Plastic Toilet (Water Closet) Seats塑胶坐便圈及坐便盖的美国国家标准 |
| 2. ASME A112.19.5-1999 Trim For Water-closet Bowls, Tanks, And Urinals坐便器，水箱及小便器的配件 |
| Australia market |
| 1. AS 1371-1973 Toilet Seats of Moulded Plastics模压塑料坐便圈 |
| European market |
| 1. BS 1254:1981 Specification For WC Seats (Plastics)坐便器便圈及便盖的规范（塑料） |
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