............Selected quality quartz as materials combined with advanced ceramic
............processing workmanship mainly used for platinum gold,and other high temp
............alloy melting high purity anti-corrosion anti strong acid and strong alcali
............the main component is Sio2≥99.99 % and other materials(K2O, Na2O Fe2O3)
............less than 0.10 % ,good hardness, compress resistance ≥70MPa, high thermal shock ............resistance,There is no crack eve after hundred sudden heat and sudden cold