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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. Beward Face Recognition and Biometric Time Attendance with Free Software
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    Beward Face Recognition and Biometric Time Attenda... SKU : WCAM101119340056
    Special Price US$98.70 Regular Price US$109.67
  2. 86Type Waterproof Box For 86*86mm Wall Switch And Socket DropShip
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    86Type Waterproof Box For 86*86mm Wall Switch And ... SKU : 32886174757
    Special Price US$0.71 Regular Price US$0.79
  3. Detachable Hole Punch Locator Jig Tool Drill Guide Sleeve for Drawer Cabinet Hardware Dowelling Wood
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    Detachable Hole Punch Locator Jig Tool Drill Guide... SKU : 32959573456
    Special Price US$16.33 Regular Price US$18.15
    Out of stock
  4. Portable Bluetooth+USB UHF RFID reader card reader card issuer Desktop R500 program Long Range 2M
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    Portable Bluetooth+USB UHF RFID reader card reader... SKU : MZUHFBTD
    Special Price US$116.12 Regular Price US$129.02
    Out of stock
  5. ISO18000 6C EPC Gen2 Vehicle Windshield UHF RFID tag for Car Parking (pack of 10)
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    ISO18000 6C EPC Gen2 Vehicle Windshield UHF RFID t... SKU : 32322398053
    Special Price US$0.44 Regular Price US$0.48
    Out of stock
  6. Face Recognition Access Control Terminal with Free Time Attendance Software
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    Face Recognition Access Control Terminal with Free... SKU : WCAM101119340470
    Special Price US$88.15 Regular Price US$97.95
  7. 百威獅 測溫儀紅外測溫儀 高精度紅外線測溫槍 工業電子溫度計
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    百威獅 測溫儀紅外測溫儀 高精度紅外... SKU : thermometer01
    Special Price US$22.36 Regular Price US$24.84
  8. 100pcs Specializing in the production of Metal interference UHF 860-960MHz RFID tags , ISO18000-6C
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    100pcs Specializing in the production of Metal int... SKU : 32256929614
    Special Price US$72.57 Regular Price US$80.64
    Out of stock
  9. 8 Inch Touch Screen Face Recognition Terminal Time Attendance Access Control Machine Software
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    8 Inch Touch Screen Face Recognition Terminal Time... SKU : WCAM101119340300
    Special Price US$163.34 Regular Price US$181.49
  10. HTTP/Mqtt Free Software Sdk Wiegand 26/34 4G Face Access Reader
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    HTTP/Mqtt Free Software Sdk Wiegand 26/34 4G Face ... SKU : WCAM101119340601
    Special Price US$164.21 Regular Price US$182.45
  11. Free Software API Sdk Face Recognition Camera with Qr and Card Reader
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    Free Software API Sdk Face Recognition Camera with... SKU : WCAM101119340630
    Special Price US$163.34 Regular Price US$181.49
  12. Durable Anti Rust Zinc Alloy Drawer Lock Office Desk Safety Lock with 2 Keys Furniture Hardware Door
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    Durable Anti Rust Zinc Alloy Drawer Lock Office De... SKU : 32944480712
    Special Price US$0.94 Regular Price US$1.05
    Out of stock
  13. 20PCS/lot 9640 UHF RFID Sticker ISO18000-6C H3 UHF RFID tag label 94.8*8.1mm
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    20PCS/lot 9640 UHF RFID Sticker ISO18000-6C H3 UH... SKU : 32686202021
    Special Price US$0.94 Regular Price US$1.05
    Out of stock
  14. 100pcs Ntag213 NFC Tags 13.56MHz ISO14443A NFC Sticker Ntag 213 All NFC Phone Available RFID NFC tag
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    100pcs Ntag213 NFC Tags 13.56MHz ISO14443A NFC Sti... SKU : HFLABELNTAG
    Special Price US$0.12 Regular Price US$0.13
  15. WiFi 4G Qr IC & ID Card Reader Facial Recognition Access Control Terminal with Free Time Attendance Software
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    WiFi 4G Qr IC & ID Card Reader Facial Recognit... SKU : WCAM101119340602
    Special Price US$163.34 Regular Price US$181.49
  16. Waterproof Day and Night Vision Wireless Surveillcance Camera 1080P
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    Waterproof Day and Night Vision Wireless Surveillc... SKU : WCAM101119340106
    Special Price US$102.84 Regular Price US$114.27
  17. Jakcom Smart Ring Wear Convenient R3 R3F Timer2 (MJ02) Black Color Magic Finger NFC Ring For Android
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    Jakcom Smart Ring Wear Convenient R3 R3F Timer2 (M... SKU : 32832918615
    Special Price US$14.52 Regular Price US$16.13
  18. ZK TF1700 Biometric Fingerprint And 13.56MHZ MF IC Card Access Control System IP65 Waterproof Finger
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    ZK TF1700 Biometric Fingerprint And 13.56MHZ MF IC... SKU : 32229662355
    Special Price US$74.75 Regular Price US$83.06
    Out of stock
  19. HTTP WiFi 4G Qr IC&ID Card Reader Terminal with Free Software Face Access
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    HTTP WiFi 4G Qr IC&ID Card Reader Terminal wit... SKU : WCAM101119340631
    Special Price US$163.34 Regular Price US$181.49
  20. 4MP Waterproof Wireless IP Surveillance Camera for Outdoor Use
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    4MP Waterproof Wireless IP Surveillance Camera for... SKU : WCAM101119340280
    Special Price US$102.84 Regular Price US$114.27
  21. Home Waterproof Security Camera CCTV Systems Outdoor
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    Home Waterproof Security Camera CCTV Systems Outdo... SKU : WCAM101119340248
    Special Price US$102.84 Regular Price US$114.27
  22. Full Outdoor Waterproof Network IP CCTV Kamera with Night Vision
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    Full Outdoor Waterproof Network IP CCTV Kamera wit... SKU : WCAM101119340241
    Special Price US$102.84 Regular Price US$114.27
  23. Home Waterproof CCTV Systems Security Camera 4MP
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    Home Waterproof CCTV Systems Security Camera 4MP SKU : WCAM101119340234
    Special Price US$102.84 Regular Price US$114.27
  24. Night Vision Camera Waterproof IP66 IP CCTV Outdoor Security System
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    Night Vision Camera Waterproof IP66 IP CCTV Outdoo... SKU : WCAM101119340230
    Special Price US$102.84 Regular Price US$114.27
  25. 50pcs/lot 860MHz-960MHz ISO 18000-6C&EPC Gen2 RFID Anti-metal UHF Tag with Sticker
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    50pcs/lot 860MHz-960MHz ISO 18000-6C&EPC Gen2 ... SKU : 32379724353
    Special Price US$11.32 Regular Price US$12.58
    Out of stock
  26. Car Furniture Hardware Camper Car Push Lock Keyless Push Button Locks Camper Car Lock RV Caravan Boa
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    Car Furniture Hardware Camper Car Push Lock Keyles... SKU : 32946925464
    Special Price US$2.90 Regular Price US$3.22
    Out of stock
  27. 500pcs/lot ISO 18000-6C Alien Higgs 3 chip 9662 antenna UHF RFID Tag 915mhz passive RFID UHF sticker
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    500pcs/lot ISO 18000-6C Alien Higgs 3 chip 9662 an... SKU : 1694940799
    Special Price US$36.29 Regular Price US$40.32
    Out of stock
  28. OEM/ODM 36X Zoom Outdoor PTZ Camera Thermal Laser IR Speed Dome PTZ Surveillance Camera
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    OEM/ODM 36X Zoom Outdoor PTZ Camera Thermal Laser ... SKU : WCAM101119340608
    Special Price US$1,728.49 Regular Price US$1,920.55
  29. Monitoring Humidity Temperature Controller Sensor Timer Thermostat Wifi Smart Switch Hot
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    Monitoring Humidity Temperature Controller Sensor ... SKU : 32924004099
    Special Price US$20.90 Regular Price US$23.22
  30. Analog IP Converter Box Supports SIP& Onvif to Convert 4 Wires Analog Video Doorphone to IP with Free Mobile Apps for Ios and Android
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    Analog IP Converter Box Supports SIP& Onvif to... SKU : WCAM101119340350
    Special Price US$66.55 Regular Price US$73.94
  31. Infrared Thermal Imaging Camera Access Control and Time Attendance Face ID Recognition Device
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    Infrared Thermal Imaging Camera Access Control and... SKU : WCAM101119340194
    Special Price US$358.66 Regular Price US$398.51
  32. Face and Card Time Recording Thermal Scanner Camera Face Recognition Turnstile
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    Face and Card Time Recording Thermal Scanner Camer... SKU : WCAM101119340146
    Special Price US$192.04 Regular Price US$213.37
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