Period : 2014/12/8 - 2017/12/7
No. : BTX[2014]054号
Certification bodies : 浙江省标准化协会
Period : 2016/12/2 - 2020/1/1
No. : 杭 AQBJX Ⅲ 20160611
Certification bodies : State Administration of Work Safety
Period : 2014/7/22 - 2017/7/21
No. : 04314E20505ROM
Certification bodies : Beijing United Intelligence Certification Co.,Ltd.
Period : 2015/6/1 - 2018/5/31
No. : 04315Q20668R2M14