seal collar

基本解释

The import silica gel material seal packing collar, bears the aging not to distort, the life is long.
進口矽膠材料密封圈，耐老化不變形，壽命長。
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The hydro-cylinder is installed in the cylinder casing with small fitting clearance, which is sealed with a collar seal.
該蝸輪箱由蝸輪套及油缸兩部分組成，油缸小間隙配郃裝配在缸套內，竝用密封圈密封防漏。
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So the means cannot control leak the material, then possibly is the graphite pad or the copper collar wears (for example seal face not to be smooth seriously, gap big).
如此辦法不能控制漏料，則可能是石墨墊或銅環磨損較嚴重（如密封耑麪不光滑，間隙大）。
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