1. Mea fa'apipi'i uiga: lapopo'a vaega, corrosiveness, fluidity, numera mesh, kalave patino, ma isi;2. O le mamafa o mea faʻapipiʻi: filifili mea faʻapipiʻi talafeagai (faʻapipiʻi laʻititi, afifi tele, afifi tone, ma isi);3. Meafaigaluega faʻapipiʻi gafatia: E tusa ai ma le faʻapipiʻiina o le saoasaoa manaʻomia, filifili le masini faʻapipiʻi taʻitasi talafeagai poʻo le faʻapipiʻiina o masini faʻapipiʻi lua;4. Sa'o lelei le fuaina o mea fa'apipi'i;5. Filifiliga o meafaigaluega: e tusa ai ma uiga o meafaitino, filifili le mea saʻo: mea faʻaleagaina e faia i le uʻamea uʻamea e faʻamautinoa ai le ola tautua o le masini afifi; mea masani e mafai ona faia i le carbon steel, lea e faʻaleleia ai le gaosiga lelei ma faʻasaoina tau;6. Metotia: E tusa ai ma uiga o meafaitino, filifili mea e fafaga ai meaʻai, e pei o: mea faʻapitoa e pei o soya ma saito e talafeagai mo fafaga pneumatic portal; mea pauta e pei o le falaoamata ma le lime pauta e talafeagai mo fafaga sikulima; o lo'o i ai le pa'u lime ma ma'a Fa'afefiloi o isi mea e talafeagai mo fafaga tu'ufa'atasi; lole fa'apoloka, laupapa fa'ailoga, laupapa fa'aletonu, ma isi mea e talafeagai mo fafaga fa'atete; mea lapopoa-meamea, e pei o maa, e talafeagai mo fafaga fusipaʻu; 7. O isi meafaigaluega fa'aopoopo: mea e fafaga ai mea, talone teuina, fa'aputu pefu pa'u, masini gaugau, masini fa'amaufa'ailoga, masini lomitusi vaitusi, masini toe viliina, ma isi.
