Oge nchekwa ọkụ nke ọnụ ụzọ ọkụ bụ 60/90/120min. A na-ekekarị ọnụ ụzọ ọkụ n’ime ọnụ ụzọ ọkụ osisi, ọnụ ụzọ ọkụ ígwè, ọnụ ụzọ ọkụ igwe anaghị agba nchara, ọnụ ụzọ enyo ọkụ na ọnụ ụzọ ámá ọkụ, ma ọ bụ osisi, ígwè ma ọ bụ ihe ndị ọzọ. Enwere akara ule atọ, A, B na C.

https://ztfiredoor.com/23859.html

aluminium fire door,aluminom ọkụ gosiri ọnụ ụzọ,door fire louver,aluminum alloy fire door,doors fire escape,aluminium fire door,door fire rated lock body,aluminom ọkụ gosiri ọnụ ụzọ,door hinge fire door,aluminum alloy fire door,door fire resistance,aluminium fire door,door flush bolt fire-proof door flush bolt,aluminom ọkụ gosiri ọnụ ụzọ,door air and fire seals,aluminum alloy fire door