Guitar String Manufacturing (GSM) is a leading manufacturer of premium crafted musical strings based in Santa Rosa, California. With over 35 years of experience, GSM specializes in OEM and private label strings, producing the finest fretted instrument strings available in the USA. Their exceptional quality USA made products are shipped daily worldwide, making GSM one of the largest musical string manufacturers in the United States.
GSM takes pride in using only the best USA made raw materials, ensuring the highest quality for their strings. With a wide range of material options including Nickel8, Brass Masters, Bronze Masters, Stainless Steel, and Silverline Classical, GSM offers customized strings for various applications. Their commitment to quality is evident in their meticulous manufacturing process, which includes core-to-wrap coupling and hand coiling each string. Whether you're a professional musician or just starting out, GSM provides a reliable and optimized sound experience for all musicians.
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