E nwere ụdị atọ nke elu-nrụgide flange sealing elu: ụgbọelu sealing elu, adabara ala nrụgide, na-abụghị egbu mgbasa ozi oge; Concave na convex akara n'elu, dabara maka obere oge nrụgide dị elu; Tenon groove sealing elu, adabara ire ọkụ, mgbawa, egbu egbu m ...
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