Operating systems: internals and design principles

Vacuum Sealer Machine, Compact Design Powerful Suction Sealing System, Dry & Moist Modes, Easy To Operate, Kitchen Automatic Food Sealer

The Complete Guide To VAV Systems: Principles, Design, and Maintenance

Compact Design Radiator Drain Valves with Double Functionality Easy To Operate Copper Drain Valves for Homes Heating Systems

6 Core LED Headlamp Rechargeable System Waterproof Design Lightweight Construction Extended Runtime for Military Operations 6 Colors Available

Button Battery Operated Car Digital Clock Lightweight Design Quartz Analog Watch Internal Stick-On

Aquarium Cleaner Internal Water Purification System with Space-saving Design for

1/2pcs Manual Toothpaste Dispenser with One-Touch Operation & Cute Smiling Face Design - Hygienic One-Way Lever System, Compact

Accuracy Fit Car Air Conditioning Tensioner Pulley Metal Rubber Design Optimized For Efficient Cooling Systems Operate

Directional Oil Supply Hand Pump for Automotive Fuels Transfer With Leakageproof Designs and Manual Operations

Adapter Coupler Quick Connector HVAC Maintenance 90-degree Design Adjustable Easy To Connect Efficient Operation

10Pieces Sturdy Brass Pipe Plugs Fittings Male Internal Hexgonal Designs for Secure Sealing In Various Systems

Yousheng Manual Call Point Alarm Strike Type Electric Bell 100dB Loud Volume Design Easy Installation Compact Internal Strike Alarm Bell

Manual Call Point Alarm Strike Type Electric Bell 100dB Loud Volume Design Easy Installation Compact Internal Strike Alarm Bell

Manual Call Point Alarm Strike Type Electric Bell 100dB Loud Volume Design Easy Installation Compact Internal Strike Alarm Bell

Foot Control Pedal Anti Slip Design Stable Operation Durable Plastic Foot Speed Control Pedal for

2pcs Motherboard Speaker Mini Plug Buzzer PC Internal Speaker for System Alerts Startup Sounds with Simple Beep Design

BARRAGE 32L DUFFLE Duffel Bag Backpack SELF CUTOMS SYSTEM Black (Current Model) Water-Repellent Design, 4-Way Operation, Compatible, T-LOK Compatible,

Multi-Functional Car Heater, 12V Quick Warm-Up, Dual Temperature, ABS Round Design, Car Plug Power, Frost & Fog Remover, Internal Use, ≤36V Operating

Compatible with TV Kit Watch TV While Navigation System TV Canceller Easy To Install Complete Design Alphard/Vellfire/Applicable driving/Operate

Rotary Shaver for Slim Design for International Slim Travel Shaver Gentle On Skin Compact No Charging Required Waterproof Battery-Operated Men,

Replacement Fan Blade for 16 Inch Stand or Desk Fan Includes Nut Cover and Five Leaf Design for Low Noise Operation

Home Theater Factory and Slim Design with a Depth of an Original Product from Home Theater Operated by AVAC Multi-Bookshelf Speakers, Wall-Mountable

2025 New Premium Brake Fluid Hose Replacement Ergonomic Design For Easy Operation