ʻO nā pōʻino i hiki ke loaʻa i loko o ka wahi hoʻoheheʻe arc i hoʻopaʻa ʻia me nā pores, nā māwae wela, a me nā ʻoki lalo. 1. Nā ʻōhū. ʻO ka hapa nui o nā pōpō i ke kikowaena o ka weld. ʻO ke kumu nui ke hūnā ʻia ka hydrogen i loko o ka metala welded ma ke ʻano o nā ʻōpū. No laila, ʻo nā hana e hoʻopau ai ...
Heluhelu hou aku