.    按膠料復合結構分類，可分為純膠密封條——由單一膠種構成；二復合密封條——由密實膠和發泡海綿膠構成，經常在密實膠內部在軸線方向包含金屬骨架材料；三復合密封條——由兩種密實膠(其中一種為淺色)和海綿膠構成，通常在密實膠內部包含金屬骨架和增強纖維。四復合密封條——公司在國內率先開發和生產了由4種膠料構成的復合密封條，在綿膠(泡管)的表面又包覆了一層薄薄的保護層膠，從而進一步提高密封件的使用壽命。
    2.按材料品種分類，可分為橡膠密封條；塑料密封條；熱塑性彈性體密封條。
    3.特殊功能分類，有些密封條具有電子智能功能，如防夾傷密封條等。

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