Amagwiritsidwa ntchito kwambiri pomanga zomangamanga, ma hardware, makampani okongoletsa zaluso.
Ubwino:
1. Standard mawu kagawo.Screw - groove kuya ndi mawonekedwe ake ndi okhazikika.Pamwamba pake ndi ozungulira ndipo sizovuta kutsetsereka.
2. Kuchiza kwa electroplating, gawo la msomali wa linoleum ndi losalala komanso losalala, palibe burr yotsalira, ulusi wabwino komanso womveka bwino.
3. Mutu wa msomali, mutu wosalala, mphamvu ya yunifolomu, kukhazikika kwabwinoko.