Hail: Hailstones hitting the metal roof or partitions develop load, sharp sounds that may truly feel mind-boggling as well as frightening in intense weather 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 kalau ma