1. Ungayisebenzisi zokuboshelwa ezilimele

2, lapho ephakamisa, awalisonti, izinsika

3, ungavumeli ifindo zokuboshelwa

4, ukugwema edwengula lokuthunga commissure noma umsebenzi overload

5, lapho izinsika ezihambayo, musa idonsele

6, ukugwema umthwalo eqinile noma ukushaqeka

7, Rig ngamunye kumelwe zihlolwe ngaphambi kokuba zisetshenziswe ngamunye

8, Polyester olumelana acid wezinto ezingaphili, kodwa sengozini acid organic

9. polypropylene kufanelekile ukusetshenziswa ezindaweni amelana kakhulu amakhemikhali

10, inayiloni unekhono simelane acid wezinto ezingaphili, ama sengozini umonakalo acid organic

11. Lapho inayiloni wet, kungaba ukulahlekelwa ngu-15%