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Search results for: 'Explain the difference between "hard" and "soft" water and how it is measured.'

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  1. Cosmetics Use C13h22n2 Biochemical Reagents and Dehydration Condensing Agents for Organic Synthesis Dicyclohexylcarbodiimide
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    Cosmetics Use C13h22n2 Biochemical Reagents and De... SKU : WCAM101119340617
    Special Price US$2,160.62 Regular Price US$2,400.69
  2. Blue Iris Compatible VoIP SIP IP Video Doorphone Intercom Intercom for Two Way Talk and Remote Door Open
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    Blue Iris Compatible VoIP SIP IP Video Doorphone I... SKU : WCAM101119340595
    Special Price US$116.67 Regular Price US$129.64
  3. Night Vision Two Way Talk and Real-Time Video Wireless Doorbell Camera WiFi Video Doorbell
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    Night Vision Two Way Talk and Real-Time Video Wire... SKU : WCAM101119340389
    Special Price US$46.31 Regular Price US$51.45
  4. UNI-T UT395A Laser Distance Meters 50M Range Finder with 2MP Lens Rangefinder Best Accuracy 2mm USB
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    UNI-T UT395A Laser Distance Meters 50M Range Finde... SKU : 32947973518
    Special Price US$34.11 Regular Price US$37.90
    Out of stock
  5. 3G Version Brand New Code / Keypad Wireless GSM audio Door Phone Intercom for Smart SMS Door lock re
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    3G Version Brand New Code / Keypad Wireless GSM au... SKU : 32793701771
    Special Price US$172.85 Regular Price US$192.05
  6. Easy On and Off Slider - Pulling Assist Device - Compression Sock Helper Aide Tool - Puller, Dinner
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    Easy On and Off Slider - Pulling Assist Device - C... SKU : 32954830358
    Special Price US$3.77 Regular Price US$4.19
    Out of stock
  7. Professional Design Fail-Secure DC12V Cabinet Door Lock for File and Document Cabinets
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    Professional Design Fail-Secure DC12V Cabinet Door... SKU : NORDS10092164
    Special Price US$9.07 Regular Price US$10.08
  8. Professional Design Fail-Secure DC12V Electronic Cabinet Lock for File and Document Cabinets
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    Professional Design Fail-Secure DC12V Electronic C... SKU : NORDS10092158
    Special Price US$20.32 Regular Price US$22.58
  9. Audio interface RFID HF 14443A NFC mini reader writer 0 5M for Android mobile phone +SDK
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    Audio interface RFID HF 14443A NFC mini reader wri... SKU : RH06
    Special Price US$43.55 Regular Price US$48.38
  10. 2Pcs/Lot PIR motion Det Light sensor 86 box stair light led infrared human body induction lamp
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    2Pcs/Lot PIR motion Det Light sensor 86 box stair ... SKU : 32792848582
    Special Price US$8.71 Regular Price US$9.68
    Out of stock
  11. RFID UHF 860-960MHz Intelligent Master Multiplexer Splitter 8 Channel Antenna
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    RFID UHF 860-960MHz Intelligent Master Multiplexer... SKU : HY909M
    Special Price US$252.79 Regular Price US$280.88
  12. 125khz /13.56mhz USB RFID Copier Reader Writer Cloner English 10 Frequency Smart Card RFID Duplicato
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    125khz /13.56mhz USB RFID Copier Reader Writer Clo... SKU : 32821814512
    Special Price US$24.97 Regular Price US$27.74
  13. New coming 48pcs 50x50x1cm black foam Anti static shredded foam sheets packing foam for LCD display
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    New coming 48pcs 50x50x1cm black foam Anti static ... SKU : 32867075741
    Special Price US$98.52 Regular Price US$109.47
  14. RFID UHF PCB ANTI-METAL TAG
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    RFID UHF PCB ANTI-METAL TAG SKU : RFID UHF PCB ANTI-METAL TAG
    Special Price US$0.80 Regular Price US$0.89
  15. 2MP Full HD Wireless Security IP67 Heavy-Duty Metal Weatherproof IP Human Detection PTZ Camera
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    2MP Full HD Wireless Security IP67 Heavy-Duty Meta... SKU : WCAM101119340610
    Special Price US$1,728.49 Regular Price US$1,920.55
  16. 2017 Xiaomi Smart Home Gateway 3 ,Aqara Smart Light Control ZiGBee/Wifi Wireless Key and Wall Switc
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    2017 Xiaomi Smart Home Gateway 3 ,Aqara Smart Ligh... SKU : 32792095225
    Special Price US$27.42 Regular Price US$30.47
  17. Pet Training supplies 10pcs/lot Electronic RFID Pigeon Bird Ring Tag For Tracking With 125KHz ID 410
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    Pet Training supplies 10pcs/lot Electronic RFID Pi... SKU : 32852337374
    Special Price US$5.81 Regular Price US$6.45
    Out of stock
  18. 4.3 Inch Touch Screen Wireless NFC Card Blue Tooth Mutiple Interfaces Face Scan Reader
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    4.3 Inch Touch Screen Wireless NFC Card Blue Tooth... SKU : WCAM101119340636
    Special Price US$73.46 Regular Price US$81.62
  19. 2pcs/Lot Indoor PIR Motion Sensor Led Stair Light Infrared Human Body Induction Lamp Recessed Steps
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    2pcs/Lot Indoor PIR Motion Sensor Led Stair Light ... SKU : 32793200331
    Special Price US$8.71 Regular Price US$9.68
    Out of stock
  20. Ios&Android Mobile Apps Home CCTV Systems Intercom Doorbell Camera
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    Ios&Android Mobile Apps Home CCTV Systems Inte... SKU : WCAM101119340376
    Special Price US$86.43 Regular Price US$96.03
  21. Temperature Facial Access Control System Turnstile Web Based Cloud Open API Document Company Management Machine
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    Temperature Facial Access Control System Turnstile... SKU : WCAM101119340444
    Special Price US$272.24 Regular Price US$302.49
  22. Access Control System Turnstile Open API Document Company Management Machine
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    Access Control System Turnstile Open API Document ... SKU : WCAM101119340144
    Special Price US$46.16 Regular Price US$51.29
  23. Xiaomi Aqara Smart Door Touch Lock ZigBee Connection For Home Security Fingerprint Unlock APP Anti-P
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    Xiaomi Aqara Smart Door Touch Lock ZigBee Connecti... SKU : 32867533788
    Special Price US$237.66 Regular Price US$264.07
  24. DIYSECUR Full TCP / IP Fingerprint ID Card Reader Door Access Control Kit + Magnetic Lock + Exit
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    DIYSECUR Full TCP / IP Fingerprint ID Card Reader ... SKU : 1290724467
    Special Price US$149.50 Regular Price US$166.11
    Out of stock
  25. Wide-Angle and Large-Aperture Lens Meeting Webcam Security 1080P Web Camera Auto Focus Wide Live for Laptop Computer
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    Wide-Angle and Large-Aperture Lens Meeting Webcam ... SKU : WCAM101119340518
    Special Price US$79.84 Regular Price US$88.71
  26. Broadlink Smart Home Wifi Smart Outlet Timer Plug Socket EU US 15A APP Wireless Remote Control Outle
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    Broadlink Smart Home Wifi Smart Outlet Timer Plug ... SKU : 32791653472
    Special Price US$16.33 Regular Price US$18.15
  27. Lanxstar Durable Smart Lockcore Mechanical Lock Transformation Replacement Intelligent Cylinder Pass
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    Lanxstar Durable Smart Lockcore Mechanical Lock Tr... SKU : 32649488636
    Special Price US$191.75 Regular Price US$213.06
  28. Access Control Attendance Body Wrist Temperature Detection Measuring Living Face Recognition Terminal
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    Access Control Attendance Body Wrist Temperature D... SKU : WCAM101119340572
    Special Price US$224.70 Regular Price US$249.67
  29. HD IPC Tester
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    HD IPC Tester SKU : MW-HDIPC04PLUS2IN1
    Special Price US$102.63 Regular Price US$114.03
  30. Free Sdk C# Built-in Card Reader RFID Facial Recognition Time Attendance Terminal Face Recognition Devices Turnstile Terminal
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    Free Sdk C# Built-in Card Reader RFID Facial Recog... SKU : WCAM101119340164
    Special Price US$142.60 Regular Price US$158.45
  31. Automatic Air Freshener for Home dec Toilet Light Sensor Regular Perfume Sprayer Machine Aerosol Fra
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    Automatic Air Freshener for Home dec Toilet Light ... SKU : 32963420371
    Special Price US$11.32 Regular Price US$12.58
    Out of stock
  32. Brushed Nickel Electronic Touchscreen Code Lock,Unlock with Card,Code,Key,Handle Direction Reversibl
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    Brushed Nickel Electronic Touchscreen Code Lock,Un... SKU : 32835347264
    Special Price US$142.33 Regular Price US$158.15
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