Różnica szyny P50 i R50

P50 to chiński standard (GB) szyna, R50 to standard rosyjski (GOST) szyna, Są podobne szyny, ale ma trochę inaczej. Proszę sprawdzić i porównać oba rysunki:

Zwykle mamy tylko zapasy szyny P50, jeśli potrzebujesz szyny R50, musimy zrobić wałek, aby go wyprodukować, MOQ powinno więcej niż 3000 Ton.

Please refer some requirement of P50:

• Requested is 3000 Tone Rails for Metro.
• Typ: R-50;
• should be made at least 2018 yr.
• all quantities should be made with one factory;
• Rails should meet: GOST R 51685-2000 or GOST 7174-75 or GOST 24182-80 or DSTU-4344-2004 or GOST 51685-2013 or their equivalent standard.
• The steel used for the rails may be made of marten or oxygen-converting or electric furnace: M-74-T or M-74-Ф or K-74-T or K-74-Ф or K-76. Ф or Э76Ф or a mark corresponding to their equivalent standard;
• The standard length of the Rail should be 25 metr;
• Rail should be without any defects;
• Marking: All rails should be marked according to the relevant standard in relief by the hot tip method ( Year and month of production in Roman numerals);
• Engraving should be done on the rails side, that not to damage or deform the rails.

Mandatory Request is:

I Should have Official Document or Passport from Manufacturer that Rails which I have is according one of the – “GOST R 51685-2000 or GOST 7174-75 or GOST 24182-80 or DSTU-4344-2004 or GOST 51685-2013” or their equivalent standard.