瓶盖用铝及铝合金带材常用合金有1100、1060和8011等，厚度范围在0.14-0.5mm,产品分涂层和非涂层铝材。重庆西南铝精密加工有限责任公司于1995年开始向市场供货，是国内向市场供货较早的企业之 There are common aluminium alloys such as 1100,1060and 8011 for botle cap. The thickness range are between0.14 ~ 0.5mm.the products are divided into non - coatedand coated materials. Chongqing SWA PrecisionProcessing Co, Ltd. has supplied to the market in bulk in1995, which is one of the earlier enterprise which suppliedto the market in China.