Colored zinc-plated expansion hook
Rainbow chromate passivation (c2C) is performed on the basis of electrogalvanizing to form a colored passivation film with a thickness of about 8-15μm. The salt spray test can last for more than 72 hours without white rust.
Electro-galvanized expansion hook
Made of Q235 carbon steel and other materials, the surface is electro-galvanized, and the coating thickness is usually 5-12μm, which meets the post-treatment requirements of c1B (blue-white zinc) or c1A (bright zinc) in GB/T 13911-92 standard.
Expansion hook
Our company mainly produces and sells various power bolts, hoops, photovoltaic accessories, steel structure embedded parts, etc.
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