首页»CQT的产品     ·Synthetic Quartz materials Raw Materials Pure Z : Q value≥2.4×106, Inclusion is based on IEC768 I grade, Etch Channel density:≤300/cm2，≤100/cm2，≤30/cm2。 Y -Bar: Q-value ≥1.8×106, Inclusion is based on IEC768 I grade, Etch Channel density : ≤300/cm2