Metal which has a constant abrasive pattern etchech on No.4 merchandise. It is usually useful for developing construction supplies for equally interior and exterior as well as for sash, doorways, and panels in propertiesTh2 ?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