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Industry News - Shenzhen Yi Fu Long Trade Development Co., Ltd.

The Gold Standard of Submersibility: A Deep Dive into Sealock’s 1.0 Bar Testing and HF Welding
This technical white paper explores the engineering benchmarks required to achieve true submersibility in waterproof outdoor gear. We provide an in-depth analysis of Sealock's 1.0 Bar hydrostatic integrity testing, the physics of 27.12 MHz high-frequency welding, and the systematic quality control measures that prevent air and water ingress in extreme environments.
2026-04-30
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Global Supply Chain Transparency: Navigating SCAN, ISO Standards, and the China-Vietnam Dual-Base Strategy
This comprehensive industry report examines the critical role of supply chain transparency and cross-regional manufacturing synergy in the technical waterproof gear sector. We analyze how Sealock (Yi Fu Long) leverages high-score SCAN audits, ISO-certified quality management, and standardized technical protocols between its China R&D center and Vietnam production bases to mitigate risks for global outdoor brands in a volatile 2026 trade environment.
2026-04-30
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The Science of Submersible Gear: Why Sealock’s 1.0 Bar Testing & PFAS-Free Mastery is the New Gold Standard
In the waterproof gear industry, "Waterproof" should never be merely a marketing slogan, but technical data verified by rigorous physical testing. This article thoroughly analyzes how SEALOCK defines product reliability through a 1.0 Bar extreme water pressure test. It also showcases our globally leading compliance layout in GRS recycled materials and PFAS-Free fluorine-free standards, delivering customized solutions for major brands that feature safety, environmental friendliness and ultimate performance.
2026-04-29
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Strategic Waterproof Gear Manufacturing: Why Sealock’s China-Vietnam Synergy is the Ultimate Choice for 2026
This article deeply deconstructs how SEALOCK addresses the core pain points in global procurement through its China-Vietnam dual-track operation model. From design validation at the R&D center in Dongguan to standardized production compliance at its Vietnam factory, combined with 1.0 bar extreme pressure testing and compliance with GRS & PFAS-Free environmental standards, we deliver a high-margin supply chain solution with minimized legal risks for global partners.
2026-04-29
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Insulated Cooler Bag: Functions, Principles & Creative Uses | SEALOCK COOLER
An insulated cooler bag is a portable bag used to hold food while maintaining its temperature and freshness. It has dual functions of keeping things cold and warm, and it’s widely used for outdoor picnics, daily lunch carrying, baby food preservation, and medical cold chain transportation.
2026-04-16
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Softe Cooler Tote Bag: Best Insulated Cooler Bag for Daily Use
When it comes to daily life, having a reliable insulated cooler bag can make all the difference—whether you’re an office worker grabbing lunch on the go, a parent packing snacks for the kids, or someone who loves casual outdoor outings.
2026-04-16
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