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Duck Calls - Game Calls (3949-DC)
Duck Calls - Game Calls
Duck Calls - Game Calls - Early duck call tools were basic woodwind instruments, while later innovations are constructed of rubber and plastic, and allow the hunter to adjust the volume and tone of the calls. a duck call is like a traditional whistle made to emulate the sound of a duck. Early duck ...
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Acetal / Delrin®

Homopolymer Acetal (Delrin®) and Copolymer Acetal (Celcon®, and Ultraform®) are similar enough that both products are still considered acetals; however, there are some minor differences. The strength and stiffness of unfilled Homopolymer Acetal (Delrin) is approximately 15% greater than the Copolymer Acetals while Copolymer Acetals exhibit substantially greater resistance to hydrolysis (degradation by hot water) and better dimensional stability, especially after prolonged exposure. Generally, the machinability of both acetal products is extremely good. The primary difference is that Acetal Homopolymer (Delrin®) is more susceptible to centerline porosity, especially in larger rods and plates, while Acetal Copolymer contains no centerline porosity. Any isolated pores are less than 25 microns in diameter.
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