Hail: Hailstones hitting the metal roof or walls produce load, sharp Appears that may truly feel too much to handle and in many cases horrifying  in intense climatic conditions.2 angka pertama dari kode tersebut di atas menunjukkan ukuran tebal besi sementara two angka di belakangnya menunjukkan ukuran strand width materialnya. Perlu pula diingat