传统用的锡壶,酒壶,青铜器,我们从小体育课中用的铅球都含铅,
现在很多应用的黄铜也含铅,多数规定铅含量不超过4%而已。
Lead is toxic but not that severe as many think unless long-term direct contact. AT&T and Verizon should have no leagal issues from that.
传统用的锡壶,酒壶,青铜器,我们从小体育课中用的铅球都含铅,
现在很多应用的黄铜也含铅,多数规定铅含量不超过4%而已。
Lead is toxic but not that severe as many think unless long-term direct contact. AT&T and Verizon should have no leagal issues from that.
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这个是政治风险,谁也不知道左疯法官会有多疯
-自了汉-
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07/17/2023 postreply
11:24:52
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5G infrastructure 投资很大,有利于长久,但是导致负债很多
-Rainbows-
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07/17/2023 postreply
12:35:19
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