ʻO ka mea maʻamau, ua kapa ʻia nā lua me ke anawaena o 0.1mm-1.0mm he mau puka liʻiliʻi.ʻO ka hapa nui o nā mea i hoʻohana ʻia i nā ʻāpana e hana ʻia he mau mea paʻakikī i ka mīkini, me ka carbide cemented, ke kila kila a me nā mea hoʻohui molecular, no laila ke ʻano o ...
Heluhelu hou aku