The trend is beautiful and refreshing.

Manual PP&PET strapping tool

Bluing packaging steel strip, bluing iron straps

by:Hongmei     2020-07-17
Bluing packaging steel strip, bluing iron straps, although named bluing, actually is to use chemicals such as sodium nitrate to metal surface oxidation at high temperature as an oxide, formed more resistant to corrosion protective layer. According to the different (of metal material Carbon steel, stainless steel, aluminum alloy) , chemicals, construction procedure of different ( The temperature control and prior sandblasting processing, etc. ) Can produce different colors, the most common is very close to the black deep black.
Chat Online
Chat Online
Chat Online inputting...
Sign in with: