Today, China Button Industry Network introduces two common materials for copper buttons: 68 Copper: The complete standard method is H68, which is the grade of high-quality brass. It is the most widely used type of brass. It represents 67.0-70.0% of lead and ≤ 0.03 lead. It uses good plasticity (it is brass. The best among them) and higher strength, from the copper tape, copper wire, button products pressed by the mold; 68 copper button product inspection needle. 62 Copper: The complete standard method is H62, which is a common brass brand, representing 60.5-63.5% of content, containing lead ≤ 0.08; using good plasticity and high strength, from copper tape, copper wire, pressed by the mold Made of button products; large volume of 62 copper button products can not pass the inspection pin. Want to learn more about buttons: accessible For more details, please pay attention to WeChat public number: Home Slipper ,Cute House Slippers,Home Wear Slippers,Slippers For Home Use YANGZHOU PENGYOU TOURISM SUPPLIES FACTORY , https://www.yzpengyou.com