غیرفعال سازی استاندارد ملی استاندارد ملی پیچ A2-70 SS316 برای لولای پنجره پل شکسته

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June 11, 2025
Video Description:
Discover the Eccentric Screw A2-70 National Standard SS316 Passivation, designed for broken bridge window hinges. This high-quality stainless steel screw ensures precise adjustment and durability, meeting international standards like ISO, GB, and DIN. Perfect for industrial and construction applications.