1.Non-porous Heat Resistant glass.2.higher resistance to mechanical shock3.the hest resistance up to800'c4.good quanlity Our main produc is pyrex ... glassware, such as glass bakeware,glass casserole, glass lid, glass bowl, glass storage set, glass container, glass ovenware, glass plate,glass dish, microwave glassware, and other heat-resistant glassware. The ...