... ,anti-bacteria,hardness3)Smooth,and not essy dirty.Compare with ceramic.4)He glassware is more bringthness and easier to ... recycled.3.More hardness han ceramic1)Jiancheng opal glassware,with 3000n anti-shock,are impact-resisting,non-cracking,flawless ... strength cleaning. Our product is in compliance with international sanitary standard. And with product-type diversity, complete specification, stable and ...