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Materail:Carbon Steel,Alloy SteelIntensity Level:Grade is not required,4.8 Grade,8.8 Grade,5.8 Grade,6.8 Grade,OthersSurface:Plain
Materail:Carbon Steel,Stainless Steel,Alloy Steel,AlIntensity Level:Grade is not required,4.8 Grade,8.8 Grade,5.8 Grade,6.8 Grade,Others
Intensity Level:Grade is not requiredSurface:Plain