Solid carbide tungsten fishtail drill is suitable for pcb flexible foil clad laminate,used for target machine drilling,the features of pcb fishtail drill are thin and flexible plate,it's structure and cutting methods are different with normal pcb drill bits.its two main cutting edge is concave and formed 100degree angle,in order to distinguish with PCB drill,named fishtail drill.fishtail drill cuts beginning of circular drill.concave along the main cutting edge to cut,chip is just two much fine filament.cuttingis falling off naturally,in order to be processed without burrformation by pcb surface.

整體硬質(zhì)合金魚尾鉆適合印制電路板行業(yè)加工撓性覆箔板黄色片色网站，為打靶機(jī)鉆孔用。魚尾鉆所加工的印制電路板特性是薄板黄色视频在线观看18岁禁、帶柔性插插插操操、這樣就決定了它的結(jié)構(gòu)和切削方式與一般PCB鉆不一樣，它的兩主切削刃是內(nèi)凹的92国产在线第一页，兩主切削刃形成100度的夾角，為了與PCB鉆區(qū)別久免视频免费一区，就叫它魚尾名永久免费黄片啊啊啊。魚尾鉆切削時(shí)從我圓處鉆尖開始，沿著內(nèi)凹的主切削刃切削亚洲女生被插下体免费看网站，切屑只是兩條極細(xì)絲狀切削久久婷婷88A片，整個(gè)切削自然剝落，從而被加工印制板表面平整無毛刺国产老妇伦国产熟女老妇视频。

It is a function of how fast the tungsten evaporates from the filament.

它是作用是表征鎢從燈絲蒸發(fā)的速度igao视频为爱搞点激情入口。

Lin Jingshan the company's Chief Engineer had personally on three of the heater heating method (commonly known as Little Miss Sunshine) to compare the speed of the hot and cold: The hand on heater in front of about 60 centimeters, to be followed by access to power: iodine-tungsten lamp quartz tube the thermal radiation immediately communicated to the hand; electric heating film about two to three seconds will be communicated to the hot hand; and the hot filament resistance will require more than 6 seconds.

該公司總工程師林景山曾親自對(duì)三種加熱方式的取暖器的冷熱速度進(jìn)行比較：將手放在取暖器前方60公分左右，然后依次接通電源：石英碘鎢燈管的熱輻射即時(shí)傳達(dá)到手上毛片?；電加熱膜約二欧美午夜一级艳片欧美精品炮另类、三秒鐘將熱傳達(dá)到手上；而電阻絲加熱的則需要6秒以上爱爱天堂网。

Less a horseshoe nails, horse suddenly fell in the trenches, so the battle will fail; a tungsten filament lamp burned down, the whole room would be a pitch-black; pen nib on the core lost a small bead on the re - also he could not write words.

馬掌少了一顆釘子农民工出租屋嫖妓，馬會(huì)在戰(zhàn)壕中突然摔倒，以致整個(gè)戰(zhàn)斗都會(huì)失斞侵拮酆贤计铡国产又硬又黄又粗视频；電燈燒毀了一根鎢絲，整個(gè)房間就會(huì)一片漆黑看黄厂免费视频；圓珠筆芯掉了筆尖上的小圓珠精品国内在视频线免费，就再也寫不出字來。

W8 g 1.12 局部照明燈泡 tungsten filament lamp for localized lighting

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