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  Airsoft BBs, .12g, .20g, .25g,6mm 0.20g Airsoft BBs,china6mm 0.23g Airsoft BBs,china6mm 0.25g Airsoft BBs, china6mm 0.28g Airsoft BBs, china6mm 0.30g Airsoft BBs, china6mm 0.32g Airsoft BBs, china6mm0.12g arisoft bbs taiwan Plastic BallsPlastic PP Balls chinaPlastic POM Balls chinaPlastic PA Balls chinaPlastic PMMA Balls chinaPlastic PC Balls chinaTPX Plastic ballNylon plastic hollow ballPE plastic ball chinaBio airsoft bbs china6mm 0.2g Bio airsoft bbs china6mm 0.23g Bio airsoft bbs chin6mm 0.25g Bio airsoft bbs chin6mm 0.28g Bio airsoft bbs chin6mm 0.30g Bio airsoft bbs chin6mm 0.32g Bio airsoft bbs chin
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PA plastic foam ball and nylon plastic foam ball specific formula
 
 
 
Detail
 

PA plastic foam ball quality and volume of the formula: for example, to calculate PA plastic float 45.5mm, diameter 47.5mm, material selection DuPont PA66 material (PA66 material specific gravity of 1.15 g / cm³): PA plastic foam ball volume = 22.75 * 22.75 * 22.75 * 3.14 / 3 The volume of plastic foam ball is very difficult to calculate, because PA plastic foam ball production process, the proportion of blowing agent because of the different formulations change, resulting in nylon plastic foam ball The density is calculated with the density and the actual production of nylon plastic foam ball density is very different, but the formula under the same conditions, the above formula is still very accurate, so the above calculation The formula is for reference only. Mobile: 0169-81775120 Contact: Mr. Dong Source: http: //www.airsoft-bbschina.com/china/

 
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