Pahū ʻo Shenhai
1. ʻAʻole hiki ke pahū nā ʻili o ka hui ma muli o nā pilikia me ka hoʻopaʻa ʻana i ka bolt, me nā hiʻohiʻona e nalowale ana a i ʻole i paʻa pono nā bolts.
2. ʻAʻole hoʻokō i nā ʻāpana ʻili pahū, e like me nā āwāwa kūpono ʻole a i ʻole ka ʻinoʻino o ka ʻili ma nā ʻili hui.
3. Inadequacy in explosion-proof enclosure entry devices arises when rubber components and cable sizes do not meet specified standards.
4. Shell integrity compromised due to cracks leads to a failure in maintaining explosion-proof qualities.