Standard: IOS 9001 Number: 17918Q10525R0S Issue Date: 2018-01-29 Expiry Date: 2021-01-28 Scope/Range: The environmental management activities involved by production and sales of Optical fiber cable , optical fiber communication wi Issued By: Beijing Zhongding Hengchang Certification Co., Ltd.

Standard: IOS 14001 Number: 17918E20280R0S Issue Date: 2018-01-29 Expiry Date: 2021-01-28 Scope/Range: The environmental management activities involved by production and sales of Optical fiber cable , optical fiber communication wi Issued By: Beijing Zhongding Hengchang Certification Co., Ltd.

Standard: OHSAS 18001 Number: 17918S10202R0S Issue Date: 2018-01-29 Expiry Date: 2021-01-28 Scope/Range: The environmental management activities involved by production and sales of Optical fiber cable , optical fiber communication wi Issued By: Beijing Zhongding Hengchang Certification Co., Ltd.

Standard: IOS 9001 Number: 17918Q10525R0S Issue Date: 2018-01-29 Expiry Date: 2021-01-28 Scope/Range: The environmental management activities involved by production and sales of Optical fiber cable , optical fiber communication wi Issued By: Beijing Zhongding Hengchang Certification Co., Ltd.

Standard: IOS 14001 Number: 17918E20280R0S Issue Date: 2018-01-29 Expiry Date: 2021-01-28 Scope/Range: The environmental management activities involved by production and sales of Optical fiber cable , optical fiber communication wi Issued By: Beijing Zhongding Hengchang Certification Co., Ltd.

Standard: OHSAS 18001 Number: 17918S10202R0S Issue Date: 2018-01-29 Expiry Date: 2021-01-28 Scope/Range: The environmental management activities involved by production and sales of Optical fiber cable , optical fiber communication wi Issued By: Beijing Zhongding Hengchang Certification Co., Ltd.