Imishini ephezulu yokunemba, ukuqeda okuphezulu kwekhwalithi, yenza ikhwalithi iqinile futhi ithembekile.


| isihloko | thanda |
| Ukuthayipha | Ama-valve ebhola |
| Indawo yemvelaphi | Zhejiang, China |
| Ubuqhwaga | Umsebenzi wezandla |
| Lokushisa lemidiya | Ukushisa okuphakathi |
| Ukusebenza okuphakathi | Edwana |
| Isicelo | Jwayelekile |
Imishini ephezulu yokunemba, ukuqeda okuphezulu kwekhwalithi, yenza ikhwalithi iqinile futhi ithembekile.
Ukuhlolwa kwesampula okuqinile kwimikhiqizo ngaphambi kokuthumela kanye nokufakwa komkhiqizo okuqondile kuqinisekiswa.