A needle valve schematic symbol is shown in the accompanying figure. As shown, the symbol consists of a vertical line with a small dot at the top. The line represents the needle of the valve, while the dot represents the seat...
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Vera Sandlin
Vera Sandlin is the founder of uptowncraftworks.com, a website dedicated to helping crafters find the materials and tools they need to create beautiful and unique handmade items. Vera has been crafting for over 15 years and has a passion for creating unique and special items that can be enjoyed by others.