ʻO kēia mīkini kahi huahana ʻoihana i hoʻolālā ʻia e like me nā pono o ka moto, valve, pump wai, bearing, kaʻa a me nā ʻoihana ʻē aʻe.He mea kūpono kēia mīkini no ka hanaʻino a me ka hoʻopauʻana i nā'āpana cylindrical o loko a me waho, nā maka hope, nā'ōpuʻu, a me nā mea'ē aʻe o nā metala ferrous, nā metala non-ferrous a me kekahi mau'āpana non-metallic me ke kila kiʻekiʻe a me nā mea paahana lako.