{"version":"1.0","provider_name":"PartsMastery","provider_url":"https:\/\/partsmastery.com\/zh","author_name":"PMEdit","author_url":"https:\/\/partsmastery.com\/zh\/author\/pmedit\/","title":"What Is Lead? Properties, Alloys, Applications & Safety Guide -PartsMastery","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"vFocQMQIyT\"><a href=\"https:\/\/partsmastery.com\/zh\/what-is-lead-properties-alloys-applications-safety-guide\/\">\u4ec0\u4e48\u662f\u94c5\uff1f\u7279\u6027\u3001\u5408\u91d1\u3001\u5e94\u7528\u53ca\u5b89\u5168\u6307\u5357<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/partsmastery.com\/zh\/what-is-lead-properties-alloys-applications-safety-guide\/embed\/#?secret=vFocQMQIyT\" width=\"600\" height=\"338\" title=\"\u300a What Is Lead? Properties, Alloys, Applications &#038; Safety Guide \u300b\u2014PartsMastery\" data-secret=\"vFocQMQIyT\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/partsmastery.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"https:\/\/partsmastery.com\/wp-content\/uploads\/2026\/07\/505b7f5e3170ba41c90fa0ef5c707d68-e1785291724836.jpg","thumbnail_width":488,"thumbnail_height":324,"description":"Lead (chemical symbol Pb, atomic number 82) is a dense, soft post-transition heavy metal with a long history of industrial use. Engineers and manufacturers value it for its exceptional density, low melting point, strong corrosion resistance, and superior radiation shielding ability \u2014 properties that make it irreplaceable in energy storage, radiation protection, and heavy engineering. [&hellip;]"}