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国产成人免费网站在线观看_久久99精品久久久久久秒播_欧美一区二区视频三区_国产精品自产拍在线观看一

QINHUANGDAO AOUAQUARTZ HIGH-TECHNOLOGY DEVELOPMENT CO., LTD

2021/08/24

Product standard

National Standard GB/T903-2019
2021/08/24

Product standard

Industry standard JC/T185-2013
2021/08/24

Product standard

GB/T 34178-2017 photomask quartz glass substrate
2021/08/24

Product standard

GB/T 34177-2017 Quartz Glass Wafers for Lithography
2021/08/24

Product application

GB/T 16523-1996 Specification for round quartz glass photomask substrate
2021/08/24

Process documents

GB/T 12442-1990 Test method for hydroxyl content in quartz glass
2021/08/24

Process documents

GB/T 10701-2008 Thermal stability test method of quartz glass
2021/08/24

Process documents

GB/T 5949-2014 Transparent quartz glass bubble and gas line test method
2021/08/19

Process documents

GB / T 4121-2014 test method for thermochromism of quartz glass
2021/08/19

Process documents

GB/T 3284-2015 Chemical composition analysis method of quartz glass

Copyright ? 2021 Qinhuangdao Yaohua quartz technology development C All rights reserved 冀ICP備2021020354號

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