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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. School Bus 4G Face Access Camera Time Attendance Machine with Free Software and Sdk
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    School Bus 4G Face Access Camera Time Attendance M... SKU : WCAM101119340639
    Special Price US$142.60 Regular Price US$158.45
  2. Smart Keyless Fingerprint Lock USB Rechargeable Waterproof Anti-Theft Security Padlock Door Luggage
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    Smart Keyless Fingerprint Lock USB Rechargeable Wa... SKU : 32972119791
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  3. L1 Smart Keyless Fingerprint Lock for Car Motorcycle Bike Waterproof Security Anti-theft Door Suitca
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    L1 Smart Keyless Fingerprint Lock for Car Motorcyc... SKU : 32956682761
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  4. Waterproof Mini portable Bluetooth smart Fingerprint Lock Anti Theft iOS Android APP control door
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    Waterproof Mini portable Bluetooth smart Fingerpri... SKU : 32962995679
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  5. Fingerprint Padlock Smart Fingerprint Lock IP66 Waterproof Dustproof Design Keyless Anti-theft
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  6. ANSI/ISO Standard ATM Magnetic Card Access Control
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    ANSI/ISO Standard ATM Magnetic Card Access Control SKU : NORDS10092222
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  7. Waterproof Keyless Bluetooth Fingerprint Lock Padlock Anti-Theft APP Control Door Cabinet Smart
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    Waterproof Keyless Bluetooth Fingerprint Lock Padl... SKU : 32968330769
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  8. 4m Flash Memory IP68 Magnetic USB 125kHz RFID Card Guard Tour Patrol System Item
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    4m Flash Memory IP68 Magnetic USB 125kHz RFID Card... SKU : 101015000002
    Special Price US$44.70 Regular Price US$49.67
  9. HTTP/Mqtt Free Sdk/API Software 10 Inch Qr+RFID Face Recognition Access Control Outdoor
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  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
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  12. WiFi 4G Qr IC & ID Card Reader Facial Recognition Access Control Terminal with Free Time Attendance Software
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  14. Face Access Control System with Free Software
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    Face Access Control System with Free Software SKU : WCAM101119340538
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  15. Lanxstar Micro Type Intelligent Lock Fingerprint Smart Anti-theft Door Interior Door Remote Blueto
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    Lanxstar Micro Type Intelligent Lock Fingerprint... SKU : 32811125059
    Special Price US$283.46 Regular Price US$314.96
  16. Machine SIM Smart Security Face Recognition RFID TCP IP Wiegand Door Access Control Free Software Dynamic Facial and Card
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    Machine SIM Smart Security Face Recognition RFID T... SKU : WCAM101119340503
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  17. Hot Sale Bicycle Alarm Lock Cycling Security Anti-theft Lock With Remote Controller Vibration Alarm
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  18. IP65 Waterproof 1920*1080 16: 9 Capacitive Touchscreen I3-4th 8GB RAM 128GB SSD 21.5" Industrial Panel PC
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    IP65 Waterproof 1920*1080 16: 9 Capacitive Touchsc... SKU : SENKE101118570003
    Special Price US$296.44 Regular Price US$329.37
  19. Waterproof Dust IP65 Wiegand Metal ID Card Standalone Fingerprint Access Control for Single Door
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    Waterproof Dust IP65 Wiegand Metal ID Card Standal... SKU : NORDS10092160
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  20. Full Aluminum IP65 Waterproof 10-Point Capacitive 10.4 Inch Touch Screen Industrial Embedded Fanless Panel PC
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    Special Price US$297.56 Regular Price US$330.63
  21. 5 Inch Free Software 13.56MHz Face Recognition Time Attendance Access Control System
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    5 Inch Free Software 13.56MHz Face Recognition Tim... SKU : WCAM101119340634
    Special Price US$95.07 Regular Price US$105.63
  22. LANXSTAR Face Recognition Palm Prints Intelligent Lock Apartment Home Anti-theft Security Door Elect
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    LANXSTAR Face Recognition Palm Prints Intelligent ... SKU : 32866582832
    Special Price US$297.54 Regular Price US$330.60
  23. Software OEM ODM Face Recognition Face Detection Access Control System
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    Software OEM ODM Face Recognition Face Detection A... SKU : WCAM101119340561
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  24. IP65 Waterproof 10.4" 12.1" 15" 17" 19" Touchscreen Android / X86 / Linux OS Fanless Industrial Wall Mounted Panel PC
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    IP65 Waterproof 10.4" 12.1" 15" 17&... SKU : SENKE101118570005
    Special Price US$127.74 Regular Price US$141.93
  25. Best Price Waterproof IP68 USB Touch Button Contact Intelligent Card Guard Tour System
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    Best Price Waterproof IP68 USB Touch Button Contac... SKU : 101015000006
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  26. IP68 Waterproof Magnetic Adsorption USB 125kHz Real Time Guard Tour RFID Card Gate Reader
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  27. IP68 Waterproof Magnetic Adsorption USB 125kHz Real Time Guard Tour RFID Reader Device Price
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    IP68 Waterproof Magnetic Adsorption USB 125kHz Rea... SKU : 101015000003
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  28. Biometric Attendance Elevator IC Card System Elevator Access Control System with Cloud Software Employee Face Recognition
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    Biometric Attendance Elevator IC Card System Eleva... SKU : WCAM101119340564
    Special Price US$172.85 Regular Price US$192.05
  29. No Wiring Easy to Installation More Secure Anti-Theft 433MHz Invisible Sliding Door Lock with 2 Remotes
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    No Wiring Easy to Installation More Secure Anti-Th... SKU : 101015000020
    Special Price US$55.31 Regular Price US$61.46
  30. No Wiring Easy to Installation More Secure Anti-Theft 433MHz Invisible Smart Lock with 2 Remotes
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    No Wiring Easy to Installation More Secure Anti-Th... SKU : 101015000019
    Special Price US$55.31 Regular Price US$61.46
  31. No Wiring Easy to Installation More Secure Anti-Theft 433MHz Invisible Door Lock with 2 Remotes
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    No Wiring Easy to Installation More Secure Anti-Th... SKU : 101015000018
    Special Price US$55.31 Regular Price US$61.46
  32. No Wiring Easy to Installation More Secure Anti-Theft 433MHz Invisible Lock with 2 Remotes
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    No Wiring Easy to Installation More Secure Anti-Th... SKU : 101015000017
    Special Price US$55.31 Regular Price US$61.46
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