High-strength ZAM-coated steel systems for highway guardrails and solar PV mounting structures — engineered to reduce material, logistics, and lifecycle costs for EPC contractors worldwide.
Founded in 2010, Qingdao Develop Group is a National High-Tech Enterprise and a provincial "Specialized, Refined & Innovative" champion — China’s leading manufacturer integrating R&D, production, sales and service for transportation safety systems and high-performance solar mounting structures.
Headquartered in Qingdao with four advanced manufacturing bases in Jinan, Chongqing and Wuhan, we are equipped with CNC laser cutting lines, intelligent robotic welding systems and automated forming lines — delivering stable quality, high efficiency and reliable supply for large-scale infrastructure projects worldwide.
Qingdao Develop Group (迪乐普) is committed to leading the transformation of global road safety and renewable energy infrastructure through innovative ZAM-coated high-strength steel guardrails, durable photovoltaic mounting systems, and precision metal fabrication services.
Our goal is to deliver lasting, cost-effective, and reliable solutions for international partners — setting new industry benchmarks in corrosion resistance, structural performance, and sustainable manufacturing.
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Our systems are trusted by professionals who demand precision engineering, reliable supply, and long-term cost efficiency.
From raw ZAM steel coils to finished guardrail systems and solar mounting structures — every step is under one roof.
Comprehensive ZAM steel solutions for highway infrastructure and renewable energy projects.
From Oman's coastal desert to China's offshore tidal flats, SRPV700D+ZMA brackets have delivered validated results in the most demanding PV environments.
Common questions about ZAM steel guardrails and solar mounting systems
ZAM (Zinc-Aluminum-Magnesium) steel is a next-generation coated steel that outperforms traditional Hot-Dip Galvanized (HDG) steel. ZAM provides 3× the strength, 6× the corrosion resistance (5040 hours vs 800 hours in salt spray tests), and features self-healing cut-edge protection. This makes it ideal for highway guardrails and solar mounting in harsh environments.
Our highway guardrail systems are fully certified to international standards including EN 1317 (European), AASHTO M180 (American), and AS/NZS (Australian/New Zealand). All products undergo rigorous crash testing and quality control to ensure safety and compliance.
ZAM steel has a service life of 30+ years in coastal and high-humidity environments, compared to 10-15 years for conventional HDG steel. Our 400MW CGN Zhaoyuan offshore solar farm project demonstrates proven performance in high-salt marine conditions.
Yes, we offer comprehensive OEM services including custom guardrail designs, specialized solar mounting solutions, and precision metal fabrication. Our engineering team can develop tailored solutions to meet specific project requirements and local standards.
Standard products typically ship within 2-4 weeks. Custom orders and large EPC projects may require 4-8 weeks depending on specifications and quantity. We maintain strategic inventory for urgent requirements and offer flexible logistics solutions including container optimization.
Our engineers are ready to help you calculate material savings, logistics efficiency, and total cost of ownership for your upcoming highway or solar project.
