To reduce the raw material cost by every possible means under the premise of assuring the glass marble quality has become a subject for glass technologists to explore with intensive efforts.

  • 在保证中碱玻璃球的质量的前提下,千方百计降低原料的成本,成为玻璃工艺技术人员下大力气去探索的课题。
目录 查词历史