| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | DGS70/127L(A) | 2014-02-10 ~ 2018-06-05 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | DGS50/127L(A) | 2014-02-10 ~ 2018-06-05 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | DGS36/127L(A) | 2014-02-10 ~ 2018-06-05 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | DGS30/127L(A) | 2014-02-10 ~ 2018-06-05 | |
| CERTIFICATE OF CONFORMITY | National work safety chongqing mine appartus testing certer | DGS24/127L(A) | 2013-03-01 ~ 2018-02-28 | |
| CERTIFICATE OF CONFORMITY | National work safety chongqing mine appartus testing certer | DGS120/127L(A) | 2013-03-01 ~ 2018-02-28 | |
| CERTIFICATE OF CONFORMITY | National work safety chongqing mine appartus testing certer | KLW5LMX(A) | 2013-11-28 ~ 2018-11-27 | |
| CERTIFICATE OF CONFORMITY | National work safety chongqing mine appartus testing certer | KLW5LM(A) | 2013-11-28 ~ 2018-11-27 | |
| CERTIFICATE OF CONFORMITY | National work safety chongqing mine appartus testing certer | KL5LM(A) | 2013-11-28 ~ 2018-11-27 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | KLW5LMX(A) | 2014-01-24 ~ 2019-01-24 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | KL5LM(A) | 2014-01-24 ~ 2019-01-24 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | KL2.5LM(A) | 2014-01-24 ~ 2019-01-24 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | DGS120/127L(A) | 2014-02-10 ~ 2018-06-05 | |
| CE | UDEM Intemational Certification Auditing Training Centre Industry and Trade Co.Ltd. | KCLA-102;KCLA-104;JBDC-102;JBDC-104;KCLA-36;KTCTJ-100;KTCTJ-104 | 2014-04-22 ~ | |
| CERTIFICATE OF CONFORMITY | National work safety chongqing mine appartus testing certer | KL4LM(A) | 2014-08-12 ~ 2019-08-11 | |
| CERTIFICATE OF CONFORMITY | National work safety chongqing mine appartus testing certer | DGS30/127L(A) | 2013-03-01 ~ 2018-02-28 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | KLW5LM(A) | 2014-01-24 ~ 2019-01-24 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | DGS24/127L(A) | 2014-02-10 ~ 2018-06-05 | |
| SAFETY CERTIFICATE OF APPROVAL FOR MINING PRODUCTS | Safety mark center of national mineral products | DGS18/127L(A) | 2014-02-10 ~ 2018-06-05 | |