TOKYO--(BUSINESS WIRE)--NIPPON KINZOKU CO., LTD. (TOKYO: 5491) (Headquarters: Minato-ku, Tokyo) announces the launch of a sample supply system for its "Internally Polished Capillary Tubes." These tubes feature significantly enhanced internal smoothness in ultra-small sizes, realized through the development of the company’s proprietary internal polishing technology. We are currently proceeding with the design and construction of manufacturing equipment, aiming for mass production within fiscal y