<p><b>PT Gunungsari Mulia</b> (PT GSM) is an Indonesian composite manufacturing company specializing in corrosion-resistant polymer composite equipment. The company maintains its corporate administration in Cikarang Baru and manufacturing facilities at Jalan Raya Citarik in Cikarang Timur, Bekasi.</p><p>PT GSM deploys multiple manufacturing processes within its plant, including continuous pultrusion lines, filament winding machines, dual-laminate fusion welding systems, and contact hand layup fabrication to manufacture structural and fluid-handling FRP components for domestic and international heavy industries.</p>