Quality Assurance
Manufacturing and R&D of premium-quality special steel billets

Quality Assurance

Manufacturing and R&D of premium-quality special steel billets

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Quality Assurance System

Test Capability

Quality Assurance System

The company has reliable quality assurance system with being accredited ISO 9001: 2015,GB/T24001-2016 certificate of environment management system certification, GB/T 45001-2020 certificate of conformity of occupational health.

System Certificate Product Certificate
Quality-Management-System-Certificate

Quality-Management-System-Certificate

ECNAS-Environmental-Certificate

ECNAS-Environmental-Certificate

CNAS-Occupational-Health-and-Safety-Certificate

CNAS-Occupational-Health-and-Safety-Certificate

Energy-Management-System-Certification1

Energy-Management-System-Certification1

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API 7-1 Certificate

API 7-1 Certificate

API 7-2 Certificate

API 7-2 Certificate

API Q1 certificate

API Q1 certificate

NS-1 Petroleum Drilling Tool Product Wear Resistant Belt Jiugubang Certificate Level 3

NS-1 Petroleum Drilling Tool Product Wear Resistant Belt Jiugubang Certificate Level 3

NS-1 Petroleum Drilling Tool Product Certification Level 5

NS-1 Petroleum Drilling Tool Product Certification Level 5

EPD registration certificate for steel ingots and continuous casting billets

EPD registration certificate for steel ingots and continuous casting billets

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Contact Us

Tel：

+86-391-6099999
+86-391-6099536
+86-391-6099565

E-mail：sales@zssw.com
Add：531 Industrial Park,Huling Industry Cluster District，Jiyuan, Henan,459008 P.R.China

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