| 1. | Specification for tongued and grooved softwood flooring 企口接合的软木地板规范 |
| 2. | Steel pipe welding neck flanges with tongue and groove face 榫槽面对焊钢制管法兰 |
| 3. | Integral steel pipe flanges with tongue and groove face 榫槽面整体钢制管法兰 |
| 4. | Boards tongued and grooved made of coniferous timber 针叶木制的接榫木板 |
| 5. | Steel pipe blank flanges with tongue and groove face 榫槽面钢制管法兰盖 |
| 6. | Chamfered boards tongued and grooved made of coniferous timber 针叶类木制开有榫和槽的削边镶板 |
| 7. | Hubbed slip - on - welding steel pipe flanges with tongue and groove face 榫槽面带颈平焊钢制管法兰 |
| 8. | Hubbed socket welding steel pipe flanges with tongue and groove face 榫槽面带颈承插焊钢制管法兰 |
| 9. | Asbestos rubber gaskets for steel pipe flanges with tongue and groove face 榫槽面型钢制管法兰用石棉橡胶垫片 |
| 10. | Loose plate steel pipe flanges with weld - on collar with tongue and groove face 榫槽面平焊环板式松套钢制管法兰 |