Bayanin samfur: DIN6885 nau'in maɓalli na layi daya shine maɓalli wanda ya dogara ga bangarori biyu azaman saman aiki kuma yana watsa juzu'i ta hanyar matse maɓallin da bangarorin maɓalli.Dangane da amfaninsu daban-daban, ana iya raba maɓallan layi ɗaya zuwa nau'i huɗu: maɓallan layi ɗaya na yau da kullun, maɓallan layi na sirara, maɓallan layi ɗaya masu shiryarwa, da maɓallan zamiya.