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why security cameras in schools is not good

Found 1060341 Products
MCW1B Magnetic Potentiometer
... 2.Non contact, no friction and long lifetime 3.Good frequency response PrincipleAs following figure shows, two doroid magnetic ... 2 terminal and its effective linear range is 90°. Beyond 90°, the linear is not goodTechnical parametersOperating voltage1-12V,DCTemperature driftless ... and control electric valve opening angle 3. Control tension in textile and paper-making machinery etc 4. Liquid level ...
  • China
  • ADD:2 FLOOR,NO.1 BUILDING ,57 HAIER ROAD QINGDAO,CHINA,qingdao,Shandong
  • TEL:86-532-80679218
WATER SOLUBLE POTASSIUM SULPHATE 99%
... °C, soluble in water. Moisture absorption is small, uneasy caking, good physical properties, easy application, is a good water-soluble potash.[ ... 1069 °C, boiling point 1689 °C. Soluble in water is not soluble in alcohol, acetone and carbon disulfide. A bitter salty. ... 5% -2% is appropriate. Potassium in soil have been generally, does not leak, but the difference in fertilizer retaining capacity of ...
  • China
  • ADD:No.96 Jinjing Road,Zibo City,ShanDong Province,China,ZiBo,Shandong
  • TEL:86-533-2182599
Yezl Y8 cree 3*XML t6 aluminum led flashlight 2580 lumens
... circuit storehouse and battery cathode copper contacts are used, good heat and electric effect,5,Head for the attack can ... design is more conducive to reduce heatconduction; strengthen resistance,8, good sealing, good waterproof , YEZL personally test it,put it in the ... water for five minutes. can still work9, because the surface contact is not good, Y6 designed toensure the good stability. ...
  • China
  • ADD:The intersection of Yinqueshan Road and Hongda Road,Lanshan District , Linyi City,linyi,Shandong
  • TEL:86-539-8359038
Thicker
ThickerDec 27, 2012
... the modulation color thick liquid is stable, In has in the lid vessel to deposit half month not lamination invariably, not the mantle, thin.3 ... take water degree of hardness as suitable),The water quality is not good, Not only must increase the amount used, Also the effect ...
  • China
  • ADD:2139zhoulonglu zhoucun,zibo,Shandong
  • TEL:0086-533-6821999
Automatic twist wire machine
... you hand to promote Mao's box, check is not good, a number of hair is not up to the required.4, please use your ... the machine in the factory is adjusted Well.6, to check the wires connected well or not , to note the line is not insulated were ... : carding wire is found not in order, you should watch carding wire sensor light is flashing, if the lights do not light that is damaged.2 ...
  • China
  • ADD:No87,Yuma Road.nan`an,chongqing,Chongqing
  • TEL:0086-23-61921522
G682 granite curbstone
... 1.Factory direct price 2.9 years gold supplier in alibaba 3.Over 10 years export experience 1.Detailed ... America, North America, Africa etc2.Kerbstone Finish & ToleranceFinishTolerance in WidthTolerance in HeightCost1All sides sawn, visible sides flamed or B/H+/-2mm ... pineappled+/-10mm+/-10mmA Remarks: Finish 3 and Finish 4 is not good for Gutters 3.Photos of G682 curbstoneKindly contact us with ...
  • China
  • ADD:Unit 1909,Youdian'guangtong,NO.11 Hudong Road,Xiamen,Fujian
  • TEL:86-592-5884889
midheaven glass
midheaven glassDec 28, 2012
... the nearby of two or more glass to sealing -in.It is not only the seal level must unify the independent sheet glass ... in together,simulataneously,in the union place,it can protect a certain ... be exempt from the outside influences,so as to achieve good results to isolate the heat and sound-insulated midheaven glass ...
  • China
  • ADD:West Langda Road Shengfang Town, Bazhou, Hebei, China,bazhou,Hebei
  • TEL:86-316-7639503
Single pipe Ultra-filter
... pressure, to separate resin in lacquer from wate 1 ) Summarize of ultra-filtration technologyUltrafiltration is a process to separate continuous ... to make it clean.It is not good to overuse electrophoresis liquid, otherwise, it will result in loss of main ingredient of ... and transparent, solid content is below 0.45%3. Strong contamination-resistance, filter membrane will not be damaged after long ...
  • China
  • ADD:9-1-203, Tianyang New city, Qinhuangdao , Hebei , China,Qinhuangdao,Hebei
  • TEL:86-335-7636676
galvanized and pvc barbed wire for sale(2 point and 4 point)
... wire. Forms we have are PUMA, MOTTO, IOWA for security, farms, enclosures, fencing toppings and military fencing and barriers ... . Boyang company is a global specialty barbed wire and fencing materials company ... and development expertise to create fencing and security solutions in the form of good quality finished products for our customers. galvanized ...
  • China
  • ADD:Xiwang Village Anping County,Hengshui,Hebei
  • TEL:86-318-7967767
T3135J186A Foton lovol piston
... pistonPin dia:40MM We have been engaged in producing piston products since 1985. Specializing in the production of piston from φ100mm-φ ... 250mm. Huge quantity of pistons install to vehicles. Quality is stable. Our ... to the photography technology and long time storage, photo effect is not good enough and can’t reflect the real products.1 OEM ...
  • China
  • ADD:Fuyang Bridge Industrial Area, Cangshi Road,Cangzhou,Hebei
  • TEL:86-317-4646888
JOHN DEERE PISTON 6068T
JOHN DEERE PISTON 6068T 1.Ready in stock 2.high OEM quality 3.One ... model with diameter 106.5mm)1. We are specialize in John deere piston and cylinder liner kit. With ... . Welcome worldwide customers to inquiry. We could sell in any quantity.3. By the following you will find ... the photography technology and long time storage, photo effect is not good enough and can’t reflect the real products. ( ...
  • China
  • ADD:No.9, South street,Xinhua district,Cangzhou,Hebei
  • TEL:0086-317-3528853
THE NEW WASTE TYRE PYROLYSIS RECYLING MACHINE
... if bike tyres 15%-65% if plastic ( PE.PP is good, PVC. Is not good)Steel: 10% Carbon black: 35%Heavy oil: 10% Pyrolysis ... . aluminum factory2. Carbon black from waste tire are used in below industriesA. electric cable jacketingB. conveyor beltC. hose and ... device enters factory; capital can be totally recovered shortly in normal production condition.After-sales ServiceWe are responsible for equipment ...
  • China
  • ADD:Industry gathering area in ningling,shangqiu city,Henan
  • TEL:86-370-3337890
Square Yoga Mat manufacturer
... /10mm · Packaging: color card and shrink film, then in carton · Delivery time:20-25days after order confirmation · ... sports exercise, yoga mats can be covered anywhere in to do a variety of actions, because of ... using to produce shoes.Bec the smell is not good,we are sugguestion not to use.Thus,the PVC foam ... file;Avoid touching sharps products;Put the mat in dry environment after using it;Clean it timely ...
  • China
  • ADD:Wangwang road .shanggao industrial park,shanggao jiangxi china,Shanggao,Jiangxi
  • TEL:86-795-2505786
LIDE Moistening and Whitening Granule
... LIDE Moistening and Whitening Granule is a kind of replenisher of nutrition,which is developed after many years of ... adult female physiology, and pathology nutritional needs. This product is processed and concentrated by high-tech technology and according ... is Carthamus Flower, peach seed, lily bulb, medlar, longan, licorice, dioscorea root and so on natural medicinal herbs. And in view of not good ...
  • China
  • ADD:No. 6, Rongyuan Road, Huayuan New-Tech Industrial Park, Nankai District,,Tianjin,Tianjin
  • TEL:86-22-58885657
7 7/8" Kingdream/CS/LILIN HAT 216 Steel tooth tricone rock drill bit/Three Cone Bit
... cone and tooth face hardface strengthening,a row of trimmers is added between gauge row and heel rowApplicable FormationsThe medium hard ... with the surface by the solid lubricant. Vice relative bearing in the reduction of wire-speed.Degrees at the same time ... the compression of the seal does Two metal security seal contact surface is always good.3.Locking roller ball, to adapt to high ...
  • China
  • ADD:Room 2203,Door 1,Building 1,Wandong Garden ,Hedong District,Tianjin,Tianjin,Tianjin
  • TEL:86-022-60990084
Cationic flocculant (Titanium dioxide dedicated flocculant)
... value of about 10-12.Uses: This product is mainly applied in the handling of the production of titanium dioxide ... a more excellent than the polyacrylamide performance flocculant. Also applicable in the chemical industry, metallurgy, paper making, printing and dyeing ... and when using conventional coagulants and polymer flocculant effect is not good, this product will be to obtain significant results.How ...
  • China
  • ADD:804,zongnanjunyuan No.64 North Kehua Road Chengdu,daying,Sichuan
  • TEL:86-028-85252472
EPB4H Plastic Plain Bearings
... 100Mpa, The max compressive deformation rate under the max load is listed in Graph EPB4H-1, The actual load capacity of bearing ... shaft and hardened shaft but the hardened chrome steel shaft is not good for CSB-EPB4H bearings. Graph EPB4H-8 shows that the ... and dimensions of the material is stabilized for the applications under humid environment or even in the water. UV Resistance Disintegration ...
  • China
  • ADD:No.138, Changsheng Road, Weitang Industrial Zone, Jiashan, Zhejiang,China,JiaXing,ZheJiang
  • TEL:86-0573-84185528
BAL-5011
BAL-5011May 10, 2016
... flow is not smooth , then it causes many problems, so many customers always say that a HID system which is made in China is no good ... .and their one year warranty is difficult. but ours is not the one . Our First ... and outstanding accomplishment so the quality of our ballast is surly good. To further enhance durability of the electronic control unit ...
  • China
  • ADD:NO.188 Changhong street Economic development zone,Deqing,Zhejiang,313299,CHINA,Hangzhou,Zhejiang
  • TEL:86-0572-8088881
Acidification Mutual Solvent JHG
... DescriptionJHG is a multifunctional acid in acidizing additives used, it can not only dissolve in acid and water, but dispersed in oil, has good moisture resistance ... 120㎝ core, surface tension before and after the change in value is not more than 5 mN / m, the corrosion rate of ... the rate of change does not exceed 10%III. Recommended DosageGenerally ...
  • China
  • ADD:1105A ,Sunshine International Building,Yuli Rd, Yuyao , China,Zibo,Shandong
  • TEL:86-0533-8510968
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