英文原文:Lead as an alloying element in steel containing up to 0,35 % lead by weight, aluminium containing up to 0,4% lead by weight and as a copper alloy containing up to 4% lead by weight. 中文:钢中合金元素中的铅含量达0.35%、铝含量达0.4%， 铜合金中的铅含量达4%；
soaring23发表:英文原文:Lead as an alloying element in steel containing up to 0,35 % lead by weight, aluminium containing up to 0,4% lead by weight and as a copper alloy containing up to 4% lead by weight. 中文:钢中合金元素中的铅含量达0.35%、铝含量达0.4%， 铜合金中的铅含量达4%；
soaring23发表:英文原文:Lead as an alloying element in steel containing up to 0,35 % lead by weight, aluminium containing up to 0,4% lead by weight and as a copper alloy containing up to 4% lead by weight. 中文:钢中合金元素中的铅含量达0.35%、铝含量达0.4%， 铜合金中的铅含量达4%；
迎国庆送壕礼！十月发帖抢大疆云台
【官方邀请】高效液相色谱使用情况有奖调研
喜迎国庆！第十七届原创大赛超级原创日参赛奖励翻倍
丹纳赫四十周年寄语征集领大礼包
