第四，DVR厂商基本建立了高品质制造体系。
Fourth, the DVR manufacturer has established the high quality manufacture system basically.
如今浮法工厂制造的玻璃具有近乎光学的品质。
制造商们受需求增加的刺激而扩大生产品种，提高产品质量。
As demand has increased, so manufacturers have been encouraged to diversify and improve quality.
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