Handrail frame and Station foot: high quality steel plate, steel stamping and welding molding and polished, rust phosphating, electrostatic powder coating, high temperature baking and other process.
扶手架及站脚：采用优质钢板、钢管冲压焊接成型，并经打磨、除锈、磷化、静电喷粉、高温烤焗等工艺处理。
The results show that baking temperature has great effect on mass content of calcium while acid dissolving process has little impact on it.
目的研究聚合氯化铝钙中铝形态、钙含量与反应条件的关系，并确定聚合氯化铝钙的分子通式。
The results show that baking temperature has great effect on mass content of calcium while acid dissolving process has little impact on it.
目的研究聚合氯化铝钙中铝形态、钙含量与反应条件的关系，并确定聚合氯化铝钙的分子通式。
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