1. Idan tsayin rivet ɗin ya yi tsayi da yawa, kan rivet ɗin ya yi girma da yawa, kuma sandar rivet ɗin yana da sauƙin lanƙwasa;Idan tsayin rivet ɗin ya yi tsayi da yawa, kauri mai kauri bai isa ba, kuma ƙirƙirar kan rivet ɗin bai cika ba, wanda ke shafar ƙarfi da nau'in nau'in.2. Tsawon rivet yayi yawa sosai...
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