Manufacturer of industrial specialized equipment and high-quality special steel billets！

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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

ECNAS-Environmental-Certificate

CNAS-Occupational-Health-and-Safety-Certificate

Energy-Management-System-Certification1

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API 7-1 Certificate

API 7-2 Certificate

API Q1 certificate

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

NS-1 Petroleum Drilling Tool Product Certification Level 5

EPD registration certificate for steel ingots and continuous casting billets

ABS Certificate

BV Classification Society Certificate

DNV Classification Society Certificate

KR Classification Society Certificate

LR Classification Society Certificate

NK Japan Classification Society Factory Approval Certificate

Italian Classification Society Certificate

China Classification Society Certificate

A2 level pressure vessel manufacturing license

Laboratory Accreditation Certificate

Ultra high pressure vessel A6 license certificate

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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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WhatsApp：863916099999

Skype：863916099999

Tel1：+86-391-6099999

Tel2：+86-391-6099565

Tel3：+86-391-6099536

E-mail：sales@zssw.com

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

Quality Assurance System

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