热烈祝贺由我司主持起草的行业标准《管道用碳钢修补器》(YB/T 4913-2021)获工业和信息化部批准发布
faburiqi:2021-06-09 liulancishu:11258
hengshengjituanshizhongjianchiyongbiaozhunhechuangxinchixuyinlingxingyefazhan,riqian,youhengshengjituanzhuchiqicaodexingyebiaozhun《guandaoyongtangangxiubuqi》(yb/t 4913-2021)huogongyehexinxihuabupizhunfabu。zheishiji《guandaoyongqiumozhutiexiubuqi》(yb/t 4652-2018)hou,hengshengjituanzhuchizhidingdedi2gexingyebiaozhun,zaicitianbuleguoneikongbai,weiguandaoyongtangangxiubuqidesheji、zhizao、jianyan、baozhuangheyunshutigonglequanweiyiju。
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