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  • Users: enas
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  1. enas

    disassembling (relief,gate)valves for water and swerage valves

    according to the complaints of a client of the finishing of double relief and gate valves, we had to disassemble the valves completely , the question is: **should we test the valves again hydraulically to make sure of the testing pressures or what kind of tests we should do it again and if so...
  2. enas

    how to diffrentiate between grey and ductile cast iron?

    hi all how can I diffrentiate between grey and ductile cast iron with its apperance.
  3. enas

    painting grey and ductile cast iron valves with pf4

    we manufacturing valves and accessories for water and swerage works, it's made of ductile or grey cast iron when we coating it with pf4, it doesn't get dry fast and makes no smooth surface and can be taken off the surface. what we do wrong??? what is the best solvent to it thanks enas

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