欧洲熟妇的性久久久久久,国产精品亚洲日韩欧美色窝窝色欲,依人九九宗合九九九,亚洲欧洲日产国码av系列天堂

功能：安全眼鏡（工業(yè)眼鏡），焊接點(diǎn)、鏡框與鏡片密合等測試符合標(biāo)準(zhǔn)：ANSI Z87.1 EN166test for safety eyewear(industrial eyewear),welding point and the embedding of frame and lens.

功能：測試眼鏡結(jié)構(gòu)接著點(diǎn)是否凝固與材料本身的抗垃力testing attachment of eyewear and tensile strength of material

功能：使用0000#鋼絲絨，一機(jī)兩用，可用鋼絲絨或鉛筆測試符合標(biāo)準(zhǔn)：QB2506-2001 QB/T2702-2005Testing by steel wool (using 0000#steel wool) or pencil

功能：測試鏡框耐燃程度符合標(biāo)準(zhǔn)：ISO/FDIS 12870 GB/T14214-2003

功能：測試彈簧腳的彈力與碟盤鉸鏈的松緊度testing the strength of Temple with Spring and tightness of housing

產(chǎn)地類別 國產(chǎn) 應(yīng)用領(lǐng)域 文體,建材,電子,印刷包裝,綜合 銀宗汗液測試機(jī)（Sweat Tester）功能：溫度55℃5℃，歷經(jīng)8小時(shí)30分鐘后，檢查眼鏡框樣本是否有斑點(diǎn)或顏色轉(zhuǎn)變符合標(biāo)準(zhǔn)：QB/T 14214-2003checking the spot or color changing of the frame sample at temperature of 55℃5℃ after the duration of 80.5 hours.