Object-Oriented Software Engineering Using UML, Patterns, and Java

1pcs Water Supply and Drainage Pipe Quick Valve, PVC 20/25/32/40mm Ball Valve Water Pipe Fitting Industry Agriculture Tools (Size : 25mm Inner Diameter)

Replacement for Honeywell VR9205Q1010 Furnace Two 2 Stage Gas Valve 24V 0151M00014 OEM

Profleet Air Suspension Cab Mount Leveling Valve Kit, P3 with Linkage Air Bag Height Control Valve for Freightlner Heavy Duty Trucks, Replaces BKS KD2510

oceanside BVP 31 Refrigeration Needle Valve Liquid Adding Refrigerator Air Conditioning Accessories Compatible Refrigeration Tools

YARNOW Professional Gas Tank Converter with Adjustable Pressure Durable Aluminum Furnace Adapter for Camping BBQ and Outdoor Cooking Tools

Qiilu Welding Head Gas Valve - Flexibly Designed Accessories for WP-26 FV Series,Durable Brass & Rubber Construction

1 Pcs 1/2" 3/4" 1" Brass Exhaust Valve Solar Water Heater Pressure Relief Valve Automatic Air Pressure Exhaust Valve Hardware Tools(Size:1/2")

Milageto Pressure Regulator Gas Valve O2 Welding Gas Regulator Switch Tool Spare Parts Portable Professional Stable Mapp Transfer