Russian fire-door and SIP panel OEMs sourcing 2K PU adhesive from China after 2022 — Vladivostok / Novorossiysk / St. Petersburg FCL logistics, GOST 30247 fire-door compliance, GOST 31309 SIP panel standards, RUB / CNY payment workflow.
Yongjia Polyurethane Co., Ltd is a China-based manufacturer of high-performance PU adhesives for SIP panels, sandwich panels, fire doors, honeycomb composites and cold storage. Trusted by industrial bonding teams across 20+ countries.
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