spring washer ပါ။
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Spring washer strength 4.8 6.8 8.8 10.9 12.9 standard size Zinc Plain DIN127 JISB1251 ANSIB18.21.1 Spring Washer UNF UNC ANSI လက်ကားဈေးဖြင့် ထုတ်လုပ်သည်
Production Detail Production Advantages YC Background YC Principle Package
