GLC Alloys – Your metal alloys partner GLC Alloys is a major supplier in the field of special, precious and refractory metals, supplying to a wide range of industries. With over 30 years of experience, GLC alloys is well placed to supply y GLC Alloys is a major supplier in the field of special, precious and refractory metals, supplying to a wide range of industries. With over 30 years of experience, GLC alloys is well placed to supply your specialty metal needs. We have a broad portfolio of metals and their alloys, sourcing a diverse range of