欧美日韩一区二区线观看,日韩欧洲A∨天码专区,中文字幕日韩高清第一页,午夜日韩福利 五月不婷婷厕所开心到到摄中文字幕_日韩亚洲欧美综合一

  • Operate all kinds of rare earth wire materials,

    Processing nonferrous alloys and rare earth alloy wires and bars

    Implementation standards: customized according to customer requirements Quality system: ISO9001

    Applicable process: evaporation coating, ion sputtering

    Specifications: according to customer requirements

  • Operate all kinds of rare earth wire materials,

    Processing nonferrous alloys and rare earth alloy wires and bars

    Implementation standards: customized according to customer requirements Quality system: ISO9001

    Applicable process: evaporation coating, ion sputtering

    Specifications: according to customer requirements

  • Operate all kinds of rare earth wire materials,

    Processing nonferrous alloys and rare earth alloy wires and bars

    Implementation standards: customized according to customer requirements Quality system: ISO9001

    Applicable process: evaporation coating, ion sputtering

    Applicable process: evaporation coating, ion sputtering

Perennial Buy

Perennial Buy

1) crude selenium (regardless of form) Se = 20%, refined selenium.

2) of selenium dioxide in 99%

3) antimony mine

4) tantalum concentrate

5), bismuth, molybdenum concentrate

6) The refined tellurium 99.95% to 99.99%

7) crude tellurium 90% (tellurium, selenium) perennial Buy

8) Cadmium Ingot 99.5-99.995% 9) 99.999% mercury