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Surface Finishes for Hydraulic Couplings

Zinc-plated, passivated, and additionally sealed: to prevent corrosion.
Nitrocarburising: a surface hardening. The product takes on a black colour.

Zinc-plated, passivated, and additionally sealed: to prevent corrosion.
Nitrocarburising: a surface hardening. The product takes on a black colour.
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