Dade a wɔabɔ no apete yɛ dade ade a wɔde nnua a wɔde ayɛ mpuran a ɛkɔ so yɛ, a wɔabobɔw no wɔ afiri a wɔde yɛ nneɛma a ɛyɛ mmerɛw, mfinimfini, ne nea wɔde wie mu, na ɛno akyi no, wɔde ngo a wɔde kata so, ngo a wɔde kata ngo so, ne nneɛma afoforo a wɔyɛ. Wɔde dade a wɔabɔ no akuturuku di dwuma kɛse wɔ nnwuma a wɔyɛ, kar, ne afie a wɔde yɛ adwuma mu. Ɛyɛ nea ɛda adi wɔ nsusuwii a ɛkorɔn, ɔfasu no su a ɛkyɛn so, ne formability a ɛkorɔn, plasticity, ne weldability.