Chinese High Quality Rubber Sealing Ring Shanghai Zefeng Industry Co., Ltd. Base Info Type:Flat GasketMaterial:BrassCombination Washer Structure:A TypeCombination Washer Packaging:Half a PackSpring Washer Type:StandardTrademark:SHZFSpecification:ISO9001Origin:China Description Pre:Performance Equipment Teflon Flange Seal Next:Supanchor Self-Drilling Rock Bolt