In 1998, the company was the first one that developed autonomously and successfully the bilateral tension net product series ...

【宁波锌：进口锌锭持续补充 现货升水小幅下滑】宁波市场主流品牌0#锌成交价在22660~22725元/吨左右，宁波常规品牌对2506合约 ...