2, make steel-making to decoke use magnesian noodles or vermicelli made from bean or sweet potato starch (grain) occupation standard;
2、钢脱硫镁粉(粒)行业标准;
2, make steel-making to decoke use magnesian noodles or vermicelli made from bean or sweet potato starch (grain) occupation standard;
2、钢脱硫镁粉(粒)行业标准;
2、钢脱硫镁粉(粒)行业标准;
2, make steel-making to decoke use magnesian noodles or vermicelli made from bean or sweet potato starch (grain) occupation standard;
Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.
含硼系、镁质容矿石是硼矿形成的物质基础,区域变质及混合、构造活动是硼矿形成的必要条件。
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