瓶蓋用鋁及鋁合金帶材常用合金有1100、1060和8011等，厚度范圍在0.14-0.5mm,產品分涂層和非涂層鋁材。重慶西南鋁精密加工有限責任公司于1995年開始向市場供貨，是國內向市場供貨較早的企業之 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.