高级艳妇交换俱乐部小说,中国美女a级毛片,亚洲人成网站观看在线观看
,www插插插无码免费视频网站,亚洲中文字幕第一页在线,日本黄页网站免费观看,蜜桃草视频免费在线观看,午夜精品一区二区三区在线观看

FAQS
- Why the electronic equipment should install the Waterproof breathable grounding column?
-
Theelectronic equipment on thegroundgenerally use thenut and thedentatelockinggasketmakeground pole,lapring fastenedon the chassis,to geta reliable electrical contactbetween metals.The traditional nutfixedgroundingcolumn existingnutlooseandlossproblem,while some of therequirements of electronic equipmentenclosures sealed waterproof case,there is also have the problem of water seepagegrounding post.
In order to solve the above problem,Dongguan PUW EPTFE Material co.,ltddeveloped awaterproofbreathablegroundingcolumn,Purpose isachieved in thefollowing manners,its structure is composed of a grounding stud,nut,lockingrod,spring,a sealingring,awaterproofcapandpull rodnut,wherein,the longitudinal section of the grouding stud column in Figure ten, the center istubular,longitudinalsection is in lockingrodfrom the rightendis ed into thelumenof groundingstudinT shape, locking rod is sheathed witha spring,lockingrodisarrangedwith a screw nutspringis fixed on thegroundstudand loose proofpull rod,the right end of thewaterproof .Cap isprovided with an annular groove,an annulargroove is provided with asealing ringisarranged in themiddle ofthe blind hole,blind hole,the inner circle is provided withthreaded connectionandgrounding studlefthandnut,middlehasthe size of twodiametersteppedhole,wherein theprocessing of smalldiameter holewithinternalthreads,the innerthread and grounding studconnected to the right end of the Tshaped plates,big diametercircular holelooiethe right end of thedisc is positionedinthe hand nut.
The outer tie rod nuts and ground stud left column slidably connected lumen.
The middlegroundstudis arranged on the external circlesizetwo disc, the disc diameter andthe hand nutis equal to the external circle diameter,the right enddiameter andwater-proof nutof small diskofthe annulargroove on theinner circlediameter.
COPY RIGHT:Dongguan PUW EPTFE Material Co., Ltd.ALL RIGHTSICP REGISTRATION IN DONGGUAN PROVICE 1001787 Views:
INTERNATION SERVICE HOT LINE: 86-0769-22850556 EMAIL:sunny@puw-china.comMANAGEMENTgmap | bmap
FAX: 86-0769-22850556-116ADDRESS: Xinfen RD No. 1, Mowu Industrial area, Wanjiang district, Dongguan City, Guangdong Province.
links:
主站蜘蛛池模板:
国产成+人+综合+欧美亚洲|
国内精品伊人久久久久av|
成人午夜在线观看日韩|
国产成人av免费观看|
久久青草精品A片狠狠来|
亚洲AV无码无在线观看红杏|
国产一区二区三区观看视频|
国产日韩精品欧美一区灰|
人妻丝袜AV中文系列先锋影音
|
国产精品高清视亚洲中文|
中国女人熟毛茸茸A毛片|
午夜男女爽爽影院免费视频下载|
久久婷婷大香萑太香蕉av人|
欧美大胆老熟妇乱子伦视频|
中文字幕久久精品波多野结|
无码福利写真片视频在线播放|
中文字幕亚洲综合久久2020|
亚洲美女又黄又爽在线观看|
亚洲最大成人av在线天堂网|
天堂在线最新版av观看|
91精品国产麻豆国产自产|
91热国内精品永久免费观看|
国产精品亚洲А∨天堂免|
久久精品有码中文字幕1|
国产人妖av一区二区在线观看|
人妻有码av中文字幕久久琪|
日韩亚洲视频一区二区三区|
久久精品岛国AV一区二区无码|
久久青青草原精品国产app|
小嫩模无套内谢第一次|
色播亚洲精品网站亚洲第一|
五月天免费中文字幕av|
久久996re热这里只有精品无码|
久久99国产一区二区三区|
在线日韩日本国产亚洲|
久国产精品韩国三级视频|
91久久性奴调教国产免费|
性做久久久久久久|
免费高潮了好湿h视频|
中文字幕无码专区一VA亚洲V专|
99国产精品自在自在久久|