1.0INDÚSTRIA DE PRODUTOS QUALTECHhttps://www.qualtechproductsindustry.biz/ptrich600338<blockquote class="wp-embedded-content" data-secret="H2DnyHNYQB"><a href="https://www.qualtechproductsindustry.biz/pt/din-53375/">DIN 53375 — Filmes e chapas plásticas: Teste COF Objetivo e aplicações</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.qualtechproductsindustry.biz/pt/din-53375/embed/#?secret=H2DnyHNYQB" width="600" height="338" title="“DIN 53375 — Filmes e Chapas de Plástico: Finalidade e Aplicações do Teste COF” — QUALTECH PRODUCTS INDUSTRY" data-secret="H2DnyHNYQB" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !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); //# sourceURL=https://www.qualtechproductsindustry.biz/wp-includes/js/wp-embed.min.js </script>DIN 53375 is a German standard that measures how slippery or grippy plastic films and sheets are when they slide against each other. This test determines both static and kinetic coefficient of friction (COF) values, which tell you how much force is needed to start sliding two surfaces and keep them sliding. Understanding these frictionhttps://koala.sh/api/image/v2-12hna7-xd6a9.jpg?width=1216&height=832&dream