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在液(ye)壓(ya)系統中,常(chang)見的密(mi)封(feng)形(xing)(xing)式有擠壓(ya)型O形(xing)(xing)密(mi)封(feng)圈(quan)、Y形(xing)(xing)圈(quan)、V形(xing)(xing)圈(quan)、U形(xing)(xing)圈(quan)唇形(xing)(xing)密(mi)封(feng)。唇形(xing)(xing)密(mi)封(feng)圈(quan)主要(yao)用(yong)于往(wang)復(fu)動密(mi)封(feng),與O形(xing)(xing)圈(quan)等擠壓(ya)密(mi)封(feng)相比,往(wang)復(fu)動密(mi)封(feng)使(shi)用(yong)唇形(xing)(xing)密(mi)封(feng)圈(quan)具...