密封环seal ring详细»
密封环annular seal;joint ring详细»
密封环packing ring;seal ring;sealing ring详细»
密封环〔名词〕ring seal详细»
密封环gland ring ring详细»
密封环sealring详细»
密封环obturator ring;seal ring;sealing ring详细»
密封环gasketed ring;joint washer;packing ring;seal ring;sealing ring详细»