FQAs Categories

Company Profile & Qualification

2026-08-06

Q: What is the company positioning and core background of Zhuohua Steel?

A: Founded in 2016 and headquartered in Xi’an, Shaanxi Province, China, Shaanxi Zhuohua Steel Co., Ltd. is a core supplier of high-end industrial steel in China. We focus on serving key fields such as heavy machinery, aerospace manufacturing, petrochemical equipment and national defense industry. Integrating warehousing & distribution, precision deep processing and import & export trade, the company owns a 3,000 ㎡ standardized professional warehouse with more than 3,000 tons of permanent spot inventory. We can quickly respond to delivery demands of industrial projects and provide global customers with stable, efficient and integrated steel supply chain solutions. With independent import and export rights, we have been deeply engaged in foreign trade business for many years, featuring a mature supply chain system and reliable delivery capacity.

Q: What official qualifications and international certifications does the company possess?

A: The company holds formal import & export operation rights and general taxpayer qualification. We have obtained core certifications of GJB9001C-2017 Military Quality Management System and ISO 9001:2015 International Quality Management System. Adopting military-grade quality control standards, we have established a complete full-process material traceability mechanism and standardized high-end testing procedures, implementing full-chain quality control from raw material warehousing and production processing to finished product delivery. Our quality system fully meets the stringent material requirements of aerospace, national defense industry, petrochemical engineering and high-end equipment manufacturing. All products comply with domestic and international standards including GB, ASTM, EN and JIS. We can provide EN 10204 3.1/3.2 material certificates, SGS, BV and other third-party authoritative inspection reports, fully adapting to global customs clearance verification, military supporting and high-end engineering project bidding qualification requirements.

Q: What is the difference between GB Steel Grade and GJB Military Standard Steel?

A: Many overseas purchasers often confuse GB national standard steel and GJB military standard special steel. The two systems differ greatly in production criteria, testing procedures, service performance and applicable scenarios, detailed comparison as below:

GB Steel Grade – General Civilian Industrial Steel: Issued as China’s universal industrial standard, GB steel is designed to satisfy daily general industrial operation and balance production cost and basic performance.

1. Service Scenarios: Widely used in infrastructure, common mechanical shafts, fasteners, general molds, conventional automobile components and ordinary pressure containers without extreme working loads.

2. Production & Inspection Rules: Chemical composition allows relatively wide fluctuation ranges; only conventional tensile strength, hardness and impact tests are required; products adopt random batch sampling inspection; common electric furnace smelting is adopted for mass production.

3. Documents Provided: Basic mill test certificate (MTC) including chemical composition and conventional mechanical data only.

GJB Standard Steel – Aerospace & Defense Military-Grade Steel: GJB is the official military specification of China, specially developed for national defense and aerospace equipment. Our Zhuohua Steel implements full-process production and inspection in accordance with GJB specifications and GJB9001C military quality system certification.

1. Service Scenarios: Customized for extreme working environments: aircraft fuselage load-bearing structures, landing gear, aero-engine high-temperature components, spacecraft parts, warship structural materials, which bear alternating load, ultra-high/low temperature, fatigue stress and strong corrosion for a long time.

2. Strict Production & Full Inspection Standards

Narrow chemical tolerance, stringent control over harmful impurities and gas content inside steel
Additional mandatory tests: high & low temperature mechanical properties, fatigue performance, creep rupture strength and fracture toughness
100% full non-destructive testing: ultrasonic testing, magnetic particle inspection, penetrant inspection to eliminate tiny internal defects
Adopt vacuum arc remelting (VAR) or electroslag remelting (ESR) to improve steel compactness and uniformity

3. Complete Traceable Military Documentation: Full set of military certification files: melting record, heat treatment curve, each procedure inspection report, batch traceability documents and official GJB compliance certificate.

Core Distinction for Your Procurement

Choose GB steel if you need cost-effective materials for regular civilian machinery production.

Choose GJB certified military steel if your projects belong to aerospace, military supporting, high-end precision equipment that demands supreme reliability and long service life.

Q: What are the core competitive advantages of Zhuohua Steel?

A: Our core advantage is direct factory supply without middleman markup. Relying on our self-owned warehouse, deep processing production lines and professional testing laboratory, we realize integrated production, sales and inspection services. We undertake diversified orders including regular spot goods, precision customization and special heat treatment with sufficient inventory, stable delivery cycle and transparent and fair quotation. Equipped with a professional bilingual foreign trade team, we provide one-stop full-process order tracking, customized export solutions and full-cycle after-sales support, fully meeting long-term cooperation needs of global customers.