GROUP PROSPERS ENTERPRISE CO., LTD. owns brand 【MATSUHAKU】the expert density tester manufacturer from Taiwan. Committed to manufacturing various professional instruments that meet the latest international norms (ASTM, ISO, GB/T, JIS), can test gold, rubber, film, oil ring, alkaline solution, ceramic, powder metallurgy, EPDM, refractory, etc., and is inducted into Precious metal, Solid, Liquid, Powder, Porous, and Multi-function Series.