Metal that has a continuous abrasive pattern etchech on No.four merchandise. It is generally utilized for making development products for both of those inside and exterior together with for sash, doorways, and panels in structuresTh2 ?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