Metal which has a ongoing abrasive pattern etchech on No.four merchandise. It is usually employed for making construction components for equally interior and exterior and also for sash, doors, and panels in buildingsTh2 ?ng vi sinh dùng trong th?c ph?m – Tiêu chu?n và ?ng d?ng Ch?c n?ng bình lu?n b? t?t ? ?ng vi sinh dùng trong th?c ph?m –