Pamaziko a Kupalira nsalu kukodzedwa Kupalira nsalu, yabwino ndi yachangu, angagwiritsidwe ntchito dera laling'ono mitengo ya zipatso ndi masamba munda, kupulumutsa nthawi ndi khama, zinthu ndi udzu nsalu ndi PP polypropylene zakuthupi, ang'onoang'ono ndi kunyamula.