... : A. Quartz Surface-- 93 % pure quartz crystal, with 7 % of resins, color pigments and othersB. standard specification: 3020*1420mm,2440 ... hurt it a little. 2.High temperature resistantance: The melting point of quartz crystal is top to 1300 degree centigrade, this degree ... the countertap materials can bear the high temperature of scorching iron, boiling water,and boiling oil etc. and do not lead to any ...