150pcs Flat Sealing Ring Red Copper Gasket O Ring Gasket Sealing Ring Washer M5/M6/M8/M10/M12/M14

Material：Copper High-concerned chemical：None Thickness(mm)：Others Model Number：Others DIY Supplies：Electrical Origin：Mainland China Certification：RoHS,CE

Material: Copper High-concerned chemical: None Thickness(mm): Others Model Number: Others DIY Supplies: Electrical Origin: Mainland China Certification: RoHS,CE