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上海德英真空为您提供国家专利产品真空泵停机后永不返油本产品系旋片式有油真空泵,能在极短的时间内,获得极高的真空极限。
Shanghai German-British vacuum to provide you with the national patented product vacuum pump will never return to the oil after the stop This product is rotary vane oil pump, in a very short period of time, access to high vacuum limit.