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 extra thickness on A and D strings "Superior" Series with 0.02 mm extra 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 The "Classic" Chrome steel Gauges/Tension: dolce 0.74mm/16.3kp/35.8lbs medium 0.75mm/17.9kp/39.4lbs forte 0.76mm/18.5kp/40.7lbs
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