Our expertise skill are different from the rest, and we are devoted to exploring the technology of "Diamond Cutting". Through the diamond carving technology, the cold metal material into a noble texture or bright and beautiful texture.

Look back on the course of producing, HSIYU specialize in diamond carving with copper aluminum commodity and copper aluminum of pen, since 1975. Back then, industry for pen was still undeveloped with only semi-mechanized technology.

Until the late 1980s when the assembly line was established, automated production line to let significantly enhance the process technology and production capacity,brought HSIYU into its golden age of marking.

After long years of practitioners experience, I believe there is no career living in twilight, as long as we have the skill and technology as strong as the sun, time will take its course and all the effort will reflect on the output, just like flowers bloomed after a good cultivation. We accumulate product experience that several years and continuously develop a creative design, we have good production technique to satisfy the different need of user.