We Heng Bo seamless materials experts concluded that: open a new path BHP Billiton, has been promoting the use of the index based on market pricing system.

  • 我们恒博物资的无缝管专家最后指出:必和必拓另辟蹊径,一直在推动采用基于市场的指数定价体系。
目录 查词历史