1. Ebetumi atew ɛka a wɔbɔ wɔ prototype a wɔyɛ ho no so kɛse na ama bere a wɔde yɛ no ayɛ tiaa.
2. Sɛnea casting no yɛ papa no ye na ɛka a wɔbɔ wɔ nneɛma a wɔyɛ ho no sua. Nneɛma a ɛwɔ mu no nhyehyɛe a ɛwɔ casting no mu no yɛ den na emu sintɔ ahorow no so tew kɛse. Ɔkɛseɛ-scale ne mass production a ɛwɔ casting no mu no ba mu na ɛka no so tew kɛse.
3. casting no wɔ dimensional accuracy a ɛkorɔn na ɛyɛ mmerɛw, a ebetumi atew ɛka a wɔbɔ wɔ ahotew ne mfiri a wɔde yɛ adwuma akyiri yi ho no so. Ɛfata titiriw ma castings a ɛyɛ pɛpɛɛpɛ a ɛkorɔn, nsusuwii a ɛyɛ den, ne nsusuwii a ɛyɛ nwonwa. Nneɛma biara nni hɔ a ɛho nhia a ɛboaboa ano wɔ casting no so, te sɛ flash anaa draft angles, a ɛhwɛ hu sɛ casting no betumi awie prɛko pɛ kɔ sɛnea dimensional pɛpɛɛpɛyɛ a wɔhwehwɛ no te, .
4. Sɛ wode toto akwan foforo pii a wɔfa so tow nneɛma gu ho a, ɛyɛ mmerɛw na ɛyɛ adwuma yiye. Ɛma adwumayɛ tebea ne nneɛma a wɔyɛ wɔ casting line no mu tu mpɔn kɛse, na ɛma nneɛma a wɔyɛ no tebea no di nneɛma a atwa yɛn ho ahyia ho banbɔ mfiridwuma ho nhyehyɛe ahorow no ahwehwɛde ahorow so yiye. Ɛma nsaanodwuma ne automated production line control yɛ mmerɛw. Ɛtew adwumayɛfo ahoɔden so, ɛtew adwumayɛfo a wɔhwehwɛ ne ahoɔden a wɔde di dwuma so. Ɛdenam nneɛma a wɔyɛ no a wɔma ɛyɛ mmerɛw so no, ɛyɛ nea etu mpɔn na ɛho ka sua.
5. Wobetumi asan de anhwea a wɔde adi dwuma no adi dwuma bio, a ɛne botae a ɛne sɛ wɔbɛtew mframa a wɔtow gu so ne ahoɔden a wɔde yɛ adwuma no hyia, na ɛtew nneɛma a wɔsɛe no so na ɛtew nwura a wɔsɛe no so .
6. Nneɛma no nyɛ anohyeto, na ne kɛse fata. Wobetumi atow dade a ɛnyɛ den, aluminum aduru, dade, dade a wɔde gu mu, nikel aduru ne dade afoforo, na wɔde afã horow a wɔde ayɛ no di dwuma kɛse wɔ kar, hyɛn, asraafo, kuayɛ ne nnwuma afoforo mu. Wobetumi ayɛ mu duru no kɛse, a ɛkɔ kilogram 500.
