Pręty do lutowania w kształcie kubka
copper-phosphorous brazing alloy, with good flow properties.
It can be used to join copper to copper or copper based base materials (e.g. bronzes / brasses), on vibration free joints. CuP7 is very fluid at brazing temperature and will penetrate into narrow gaps and tight joints.
The phosphorus contained in the alloy acts as a fluxing agent, so that it is not necessary to use an additional flux when brazing copper to copper; however when joining copper based materials (e.g. bronzes / brasses) a proper flux should be used.