Test item 測試名稱： Building Hardware --- Controlled door closing devices --- Re and test method  建筑構(gòu)件 控制門關(guān)閉裝置 要求和試驗(yàn)方法Test info 測試內(nèi)容：                                                          Testing Items MarkingRe concerning product informationWorkmanship DurabilityClosing momentOpening momentEfficiencyClosing timeAngles of operationOverload performanceTemperature dependenceFluid leakageLatch control (optional)Backcheck (optional)Delayed closing (optional)Adjustable closing force (optional)Zero position performance (for double action door closers only)Corrosion resistanceAdditional re for a door closer intended for use on fire/smoke door assembliesSample Re: 7 pieces of samples樣品要求： 7件樣品Turnaround time: normal (37 working days)所需時間: 標(biāo)準(zhǔn)(37 個工作天) Sample for reference 參考圖片: Sample Report 報(bào)告樣本：