Metal that has a continuous abrasive pattern etchech on No.four items. It is usually utilized for setting up development products for both of those inside and exterior together with for sash, doorways, 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