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Yong’inga chidamli eshikdagi yong’inga chidamli shisha olovda yonishi mumkin bo’lgan yuqori yong’inga chidamliligiga ega va ma’lum vaqt ichida hech qanday portlash va erish ta’siriga erishish mumkin. Yong’in eshigi oynasining qattiqligi suzuvchi oynadan 6 ~ 12 baravar va temperli oynadan 2 ~ 3 baravar yuqori.

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