Since 1956 the famous first-class strings Round wound steel core with fine filaments of pure metal or alloys Warm and bright sound, long lifespan "Classic" Series - standard strings "Special" Series with 0.01 mm additional thickness on A and D strings "Superior" Series with 0.02 mm additional thickness compared to "Special" "Silver Sound" Series with G and C strings made with an ultra-flexible steel core and the latest pure silver winding D "Classic" Chrome steel Gauges/Tension: dolce 0.97mm/13.6kp/29.9lbs medium 0.98mm/14.0kp/30.8lbs forte 0.99mm/14.1kp/31.0lbs
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