I-Z-LION PCD-21 i-PCD eyindilinga emithathu eyindilinga yokugaya i-trapezoid iyithuluzi elisindayo lokususa ukunamathela ukuze lisuse izinto eziwugqinsi ne-elastomeric ezifana ne-epoxy, urethane, i-polyurethane, i-polyaspartic, i-acrylic, insalela yeglue, njll. Ithuluzi line-PCD eyindilinga engu-3 eyisigamu kanye inkinobho esekela ingxenye.Iza nepuleti le-trapezoid elijwayelekile, lingagxunyekwa ezinhlobonhlobo zokugaya phansi ngezimbobo ezi-3 epuleti le-trapezoid.Idizayinelwe ukusebenza ngendlela ethile, njengokuhamba kwewashi noma ngokuphambene newashi.