Jargar - 638.931

Famous for first-class strings since 1956.
Steel core string wound with thin filaments of pure or alloyed metal.
Warm.
brilliant tone and long life.
"Classic" Series - standard strings.
"Special" Series has 0.01 mm thicker A+D strings.
"Superior" Series is 0.02 mm thicker than "Special".
"Silver Sound" Series has G and C strings made of a highly flexible steel core with a top coil of pure silver.
C "Superior" medium.
String tension: 14.
5kp.