1. Injin shafa manne mai zafi: A shafa wani manne mai ruwa mai kauri, wanda aka shafa a kan manne, yawanci yana ɗauke da ɓangaren lamination, injin da zai iya laminating wani manne da kuma manne. (Wani nau'in polymer ne wanda baya buƙatar mai narkewa, yi...
Kara karantawa 
