valve spool
   Copper parts
Copper is referred to as the necessities of life, industrial products using pure copper or copper alloy as the main raw material processing.
Copper is a kind of purple red, soft and tough, malleable and shiny metal, 1 grams of copper can be pulled into a 3000 meter long filaments, or pressed into more than 10 square meters of almost transparent foil. The electrical conductivity and thermal conductivity of copper is very high, but silver copper, but much cheaper than silver.
The alloy composition and classification
Brass -- copper zinc alloy
Bronze -- copper tin alloy (Zn Ni alloy in addition, adding other elements are called bronze).
Copper -- copper cobalt nickel alloy
Product shape classification of
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