Precise hydraulic cylinder is a special purpose tool which...">

,需要通过父级DOM结构来判断 */ var trackActionPhone = function (node) { var nodeInnerText = node.innerText || '' if (!limitRegLength(nodeInnerText)) return var nodeText = trimText(nodeInnerText) if (nodeText.length < 5 || nodeText.length > 20) return false var type = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'click' var str = trimText(node.href || node.innerHTML || '') if (phoneReg.test(str) && numUseReg.test(str)) { _paq.push(['trackEvent', type, 'phone', nodeText]) return true } /** 排查父级嵌套非标签场景,并且对dom的正则校验做一个性能兜底,通过控制innerText的长度,来确保正则的性能 */ var fatherText = trimText(node.parentNode.innerText || '') if (fatherText.length < 5 || fatherText.length > 20) return false var fatherDom = trimText(node.parentNode.innerHTML || '') if (phoneReg.test(fatherDom) && numUseReg.test(fatherDom)) { _paq.push(['trackEvent', type, 'phone', nodeText]) return true } return false } window.addEventListener('click', function (e) { var node = e.target /** 社媒点击 */ var appName = '' var getAppAriaLabel = node.ariaLabel || node.parentNode.ariaLabel || '' if (mediaList.includes(getAppAriaLabel.toLowerCase())) { appName = getAppAriaLabel } if (!appName && node.nodeName && node.nodeName.toLowerCase() === 'a') { appName = getMediaName(node.href) || getMediaName(node.alt) } if (!appName && node.nodeName && node.nodeName.toLowerCase() === 'img') { appName = getMediaName(node.alt) || getMediaName(node.src) } if (!appName && node.nodeName && node.nodeName.toLowerCase() === 'i') { appName = getMediaName(node.className) } if (appName) { _paq.push(['trackEvent', 'click', 'contactApp', appName]) return } /** 联系方式点击 */ if (trackActionPhone(node, 'click')) return if (node.nodeName && node.nodeName.toLowerCase() === 'a') { var val = node.href if (!limitRegLength(val)) return if (emailReg.test(val)) { _paq.push(['trackEvent', 'click', 'email', val]) return } } if (node.nodeName && node.nodeName.toLowerCase() === 'i') { var val = node.className var content = node.parentNode.href || '' if (val.includes('email')) { _paq.push(['trackEvent', 'click', 'email', content]) return } } var nodeChildList = node.childNodes for (var i = 0; i < nodeChildList.length; i++) { ;(function (i) { if (nodeChildList[i].nodeType !== 3) return var val = nodeChildList[i].textContent.replace(/\s?:?/g, '') if (!limitRegLength(val)) return if (emailReg.test(val)) { _paq.push(['trackEvent', 'click', 'email', val]) return } })(i) } trackNumberData(node) }) window.addEventListener('copy', function (e) { if (trackActionPhone(e.target, 'copy')) return var text = e.target.textContent if (!text) return var val = text.replace(/\s:?/g, '') if (!limitRegLength(val)) return if (emailReg.test(val)) { _paq.push(['trackEvent', 'copy', 'email', val]) return } trackNumberData(e.target) }) } trackContactInit() /** * 基于custom_inquiry_form.js 以及 form.js 对于询盘表单提交的实现,来反推询盘表单的input标签触发,用来收集意向客户 * 1. 缓存的KEY:TRACK_INPUT_ID_MTM_00; * 2. 缓存策略 - lockTrackInput:单个页面内,10分钟内,不重复上报 */ function trackActionInput() { const CACHE_KEY = 'TRACK_INPUT_ID_MTM_00' const pathName = window.location.hostname + window.location.pathname var lockTrackInput = function () { try { const lastCacheData = localStorage.getItem(CACHE_KEY) if (!lastCacheData) return false const cacheData = JSON.parse(lastCacheData) const cacheTime = cacheData[pathName] if (!cacheTime) return false return Date.now() - cacheTime < 1000 * 60 * 10 // 10分钟内,不重复上报 } catch (error) { console.error('lockTrackInput Error', error) return false } } var setInputTrackId = function () { try { const curCacheData = localStorage.getItem(CACHE_KEY) if (curCacheData) { const cacheData = JSON.parse(curCacheData) cacheData[pathName] = Date.now() localStorage.setItem(CACHE_KEY, JSON.stringify(cacheData)) return } const cacheData = { [pathName]: Date.now(), } localStorage.setItem(CACHE_KEY, JSON.stringify(cacheData)) } catch (error) { console.error('setInputTrackId Error', error) } } var getInputDom = function (initDom) { var ele = initDom while (ele) { /** * isWebSiteForm 是站点的表单 * isChatWindowForm 是聊天窗口的表单 */ /** 旧模板表单 */ var isWebSiteForm = !!(/crm-form/i.test(ele.className) && ele.querySelector('form')) /** 1:新模板自定义表单、2:Get a Quote 弹框表单 */ var isWebSiteFormNew = !!(/inquiry/i.test(ele.className) && ele.querySelector('form')) if (isWebSiteForm || isWebSiteFormNew) { _paq.push(['trackEvent', 'formInquiry', 'formInput', 'page']) setInputTrackId() break } /** Mkt会话触达-聊天弹框的表单输入: MKT由于是iframe嵌入,所以MKT的上报,会单独写到MKT-form代码上 */ var isInquiryChatForm = !!(/comp-form/i.test(ele.className) && ele.querySelector('form')) if (isInquiryChatForm) { _paq.push(['trackEvent', 'formInquiry', 'formInput', 'chat']) setInputTrackId() break } /** 向上查找父节点 */ ele = ele.parentNode } } function initInputListener() { var inputUseDebounce = function (fn, delay) { var timer = null var that = this return function () { var args = Array.prototype.slice.call(arguments) if (timer) clearTimeout(timer) timer = setTimeout(function () { fn.apply(that, args) }, delay) } } var optimizeGetInputDom = inputUseDebounce(getInputDom, 300) window.addEventListener('input', function (e) { /** 如果已经上报过,则不再上报 */ if (lockTrackInput()) return optimizeGetInputDom(e.target) }) } try { initInputListener() } catch (error) { console.log('initInputListener Error', error) } } trackActionInput() } /** 第三方消息上报:目前主要是针对全点托管会话;在msgCollect/index.js中调试,访问test.html */ function thirdMsgCollect() { /** 先检测是否是stayReal托管:如果stayReal脚本都没有,那么说明当前站点未开启stayReal会话托管 */ const scriptList = Array.prototype.slice.call(document.querySelectorAll('script')) const checkStayReal = () => !!scriptList.find((s) => s.src.includes('stayreal.xiaoman.cn')) if (!checkStayReal()) return /** 缓存当前消息队列的最后一条消息id */ const CACHE_KEY = 'CACHE_KEY_MONITOR' const setCache = (msgIndex) => { /** 对缓存KEY进行base64转码处理 */ const cacheMsgIndex = btoa(msgIndex) localStorage.setItem(CACHE_KEY, cacheMsgIndex) } const getCache = () => { const cacheMsgIndex = localStorage.getItem(CACHE_KEY) if (cacheMsgIndex) return Number(atob(cacheMsgIndex)) return -1 } /** 拉取最新msg列表 */ const pullMsgList = () => { const msgEleList = Array.prototype.slice.call(document.querySelectorAll('#chat-list li')) const msgIds = [] const msgMap = msgEleList.reduce((acc, item) => { const sendTime = item.querySelector('.message-data-time').textContent.trim() const sendContent = item.querySelector('.message').textContent.trim() /** msg带有class:other-message的是访客消息,my-message的是客服消息 */ const isOtherMessage = item.querySelector('.message').classList.contains('other-message') const msgId = item.querySelector('.message').getAttribute('id') const msgItemData = { msgId, user: isOtherMessage ? 'visitor' : 'official', time: sendTime, content: sendContent, } msgIds.push(msgId) acc[msgId] = msgItemData return acc }, {}) return { ids: msgIds, dataMap: msgMap, } } /** 加密并上传消息数据 */ let ENCRYPT_KEY = 'de29f1aab63ab033' let ENCRYPT_IV = 'b8d2badf875e76ac' const baseUrl = 'https://cms.xiaoman.cn' // var getEncryptConfig = function () { // const url = baseUrl + '/shop-api/innerApi/getKeyIv' // $.get( // url, // function (result) { // console.log('result', result) // if (Number(result.code) === 0 && result.data.key && result.data.iv) { // ENCRYPT_KEY = result.data.key // ENCRYPT_IV = result.data.iv // uploadMsgData() // } else { // /** 如果获取失败,则重试 */ // setTimeout(() => { // getEncryptConfig() // }, 1000) // } // }, // 'json' // ) // } // getEncryptConfig() const encryptMsg = function (msgData) { const enc = new TextEncoder() // 转字节 const keyBytes = enc.encode(ENCRYPT_KEY) const ivBytes = enc.encode(ENCRYPT_IV) const plainBytes = enc.encode(msgData) // 导入密钥并加密 return crypto.subtle .importKey('raw', keyBytes, { name: 'AES-CBC' }, false, ['encrypt']) .then(function (cryptoKey) { return crypto.subtle.encrypt({ name: 'AES-CBC', iv: ivBytes }, cryptoKey, plainBytes) }) .then(function (encryptedBuffer) { // 转 base64 返回 return btoa(String.fromCharCode(...new Uint8Array(encryptedBuffer))) }) .catch((err) => { return Promise.reject(err) }) } let uploadFlag = false const uploadMsgData = function () { if (uploadFlag) return uploadFlag = true const { ids, dataMap } = pullMsgList() let cacheMsgIndex = getCache() const msgLen = ids.length if (!msgLen) { // 消息DOM未挂载 || 消息DOM已挂载,但是消息列表为空 uploadFlag = false return } if (msgLen - 1 < cacheMsgIndex) { /** 针对站点挂后台一段时间,消息列表会自动塞入重复消息,导致消息有重复,刷新后又重置回正常消息列表,所以这里需要更新锚点下标 */ cacheMsgIndex = msgLen - 1 setCache(cacheMsgIndex) uploadFlag = false return } if (msgLen - 1 === cacheMsgIndex) { // 缓存的最后一次发送的消息ID是最后一条(说明当前消息均已经上报),则不跳过本地上报 uploadFlag = false return } const currentMsgIds = ids.slice(cacheMsgIndex + 1, msgLen) const currentMsgData = currentMsgIds.map((id) => dataMap[id]) const mtmId = window.matomo_site_id_cookie_key || '' // 获取mtm会话id const msgBody = { mtmId, curl: window.location.href, msgList: currentMsgData, } const msgBodyStr = JSON.stringify(msgBody) encryptMsg(msgBodyStr) .then(function (encryptedMsg) { console.log('encryptedMsg:', encryptedMsg, msgBodyStr) const url = baseUrl + '/shop-api/External/ListenSiteActiveStatus' $.ajax({ type: 'POST', url, data: JSON.stringify({ d_v: encryptedMsg }), contentType: 'application/json', success: function (result) { if (Number(result.code) === 0) { // 更新消息队列 setCache(msgLen - 1) } uploadFlag = false }, error: function (err) { console.error(err, '请求异常') uploadFlag = false }, }) }) .catch((err) => { console.error(err, '数据加密失败') uploadFlag = false }) } /** 监控chat-list的DOM变更 */ const initChatListObserver = () => { // 需要监听的 DOM 节点 const target = document.getElementById('chat-list') // 回调函数 const callback = function (mutationsList, observer) { for (const mutation of mutationsList) { console.log('mutation', mutation) if (mutation.type === 'childList') { uploadMsgData() } } } // 配置 const config = { childList: true, // 监听子节点的增删 subtree: true, // 是否也监听后代节点 } // 创建 observer const observer = new MutationObserver(callback) // 开始监听 observer.observe(target, config) } let testCount = 30 let itv = null const checkChatDom = () => !!document.querySelector('#vc-model') const initTalkCheck = () => { itv = setTimeout(() => { console.log('checkChatDom', checkChatDom(), testCount) if (!checkChatDom() && testCount > 0) { testCount-- initTalkCheck() return } clearTimeout(itv) uploadMsgData() initChatListObserver() }, 1500) } initTalkCheck() } try { gtmTrack() thirdMsgCollect() console.log('inserted gtm code') } catch (error) { console.error('gtmTrack Error', error) } }) })();
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precision hydraulic cylinders

Hi there! In this blog, we will talk about hyd power pack like they play a vital role in any machine. You may be asking, "What does that mean? " Let me clarify it simply and elaborated.

Precise hydraulic cylinder is a special purpose tool which involves movement utilizin a fluid medium such as oil. It is extremely useful, as it enables us to easily lift heavy objects and allows machines to function even more efficiently than in the past. Huachen is a company that manufactures these cylinders. In this article, we will do the following:Understand the power of these cylindersUnderstand their advantagesUnderstand their functionality in various scenariosUnderstand the role they play in the functioning of various machines

The Benefits of Precision Hydraulic Cylinders

Let’s begin with the impact of high-hydraulic power pack. These are very powerful cylinders that can easily actuate very heavy loads. The way they work is that they use oil to flow through the cylinder, which makes it easier for the machine to lift a lot of force rather. So think of it this way: lifting a large, heavy box by yourself. Hard to do, isn’t it? But if all you had was a hydraulic cylinder, it would help you lift that heavy box with ease and without putting much effort into it. And this is why they are powerful!

So, let us talk about the advantages of precision hydraulic cylinders. To begin with, they save a considerable amount of time because they can lift large and heavy items far quicker than we could do with our own hands. These cylinders are the best solution for lifting heavy objects in short time. Second, they assist in maintaining safety while lifting heavy objects. Instead of fighting against gravity to raise the weights, our hydraulic cylinder does a bulk of the lifting. That means less opportunity for injury while lifting. The third is that these cylinders may reduce machine wear. They ensure machines are not overly fatigued or stressed, increasing quality of life as well as operational longevity.

Why choose Huachen precision hydraulic cylinders?

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