Japanese Sterling Silver 925 Pen Vertical Stripes 色:Silver Antibacterial test was

Antibacterial test was

bacteria attached to this

Semi-permanent antibacterial effect by copper ion

（This test is in accordance with ISO standards

Japanese Sterling Silver 925 Pen Vertical Stripes 色:Silver Antibacterial test wasA beautiful vertical stripe design is mechanically engraved. The body is made by deep drawing from a 0. 8mm plate, and the amount of silver 925 used is about11. 2~11. 4g. The surface is carved with a luxurious feel. When processing silver into a thin form, it is difficult to secure strength and precision. In the deep drawing process, which is our specialty, strength is secured by the work hardening phenomenon.