常见例句Aluminum alloy; hard brass; Be-Cu；elkonite 30w3; stainless steel and so on. 铝合金；紫铜；黄铜；铍铜；青铜；磷青铜；钨铜；银基合金；不锈钢等Elkonit 艾尔柯尼特合金 返回 elkonite