var signPackage={"appId":"wx1caa3a36c2571826","nonceStr":"9pJnnxU6NS6yjgDU","timestamp":1731944593,"url":"m.cengbang.com%2Fchanpin%2FLatexSystems%2Flatex+systemslxzt.html","signature":"d5e98a4b2c2119aea365c7949fca01cf3243966a","rawString":"jsapi_ticket=&noncestr=9pJnnxU6NS6yjgDU&timestamp=1731944593&url=m.cengbang.com%2Fchanpin%2FLatexSystems%2Flatex+systemslxzt.html"}