{"version":"1.0","provider_name":"SPX \u51b7\u5374\u6280\u672f","provider_url":"https:\/\/spxcooling.com\/zh","author_name":"SPX Cooling Tech, LLC","author_url":"https:\/\/spxcooling.com\/zh\/author\/cooladmin\/","title":"The Marley Difference - Redwood Lumber Grades","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"FVy3FXK3ZJ\"><a href=\"https:\/\/spxcooling.com\/zh\/library\/the-marley-difference-redwood-lumber-grades\/\">Marley \u7684\u4e0e\u4f17\u4e0d\u540c\u4e4b\u5904 \u2013 \u7ea2\u6728\u6728\u6750\u7b49\u7ea7<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/spxcooling.com\/zh\/library\/the-marley-difference-redwood-lumber-grades\/embed\/#?secret=FVy3FXK3ZJ\" width=\"600\" height=\"338\" title=\"\u300a The Marley Difference &#8211; Redwood Lumber Grades \u300b\u2014SPX Cooling Technologies\" data-secret=\"FVy3FXK3ZJ\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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:\/\/spxcooling.com\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>","description":"While both appearance and structural grades of redwood lumber are defined by appearance or visual characteristics, they have very different applications. For cooling towers and other structural applications, grading rules for structural grades of redwood establish requirements for strength characteristics such as slope of grain, knot size and frequency, and rate of growth."}