... testNa2O≤100µgAlkali-proof testISO0695/We, Taixing Zhicheng Glass Co., Ltd, are a factory engaged in the field of 3.3 high ... boroslicate glass products. We have our own furnace ... melting, polishing, end-closing, frosting, color-printing and etc.. We are the member of China International Trade Promotion Committee and International Chamber ...