60d 6 nails

60d 6 nails

...

60d 6 nails 60d 6 nails

Read More
  • 1. Principle. Because zinc does not change easily in dry air, and in humid air, the surface can form a very dense film of zinc carbonate, which can effectively protect the interior from corrosion. And when the coating is damaged for some reason and the matrix is not too large, the zinc and steel matrix form a micro cell, so that the fastener matrix becomes the cathode and is protected. It is widely used in automobile transportation and other industries, but what is needed is the trivalent chromium passivation layer, zinc nickel alloy plating closed coating, reduce the harmful and toxic layer of hexavalent chromium passivation.

    60d 6 nails

    ...

    60d 6 nails 60d 6 nails

    Read More
  • The weight calculation method of hexagonal net is: the weight calculation method of hexagonal net: silk meridian.× silk meridian.× base x length x width ÷2=kg base: 1/2′=2.151′=1.273/4′=1.65/8′=1.875/4′=1.091′x1/2′ : 3′=0.4 silk warp. x silk warp. X 2x length x width ÷8×3=kg

    60d 6 nails

    ...

    60d 6 nails 60d 6 nails

    Read More
  • 

    Popular articles

    Latest articles

    Links