Emhlobiso wangaphakathi, i-veneer yamatshe yemvelo izosetshenziselwa ukudala ukuthungwa kwe-concave ne-convex odongeni. Ngokuthandwa kwesitayela se-wabi-sabi, abaklami baye baba nomdlandla kakhulu mayelana nokusetshenziswa kwezinto zemvelo eminyakeni yamuva. Kodwa-ke, itshe lemvelo linezinkinga eziningi ezifana nezinto ezingavuthiwe, izindleko, ezokuthutha, nokwakhiwa okunzima ukuzixazulula. Ukuvela kwetshe le-PU kungasetshenziswa esikhundleni setshe lemvelo ukuze kuzuzwe umphumela "womgunyathi nowangempela".