1. ʻO ka wehe ʻana o ka ʻōpala o ka ʻili o ka paipu kila e hiki i ka maʻamau sa2.5 o gb8923-88, e hōʻike ana i ke kala maoli o ka metala, me ka ʻike ʻole ʻia o ka momona, ka lepo, ka ʻōpala, a me nā mea pili ʻē aʻe. 2. Pono e ho'ōla ka papa anti-corrosion i loko o 24 mau hola, me ka mānoanoa like, compactness, n ...
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