铜套 非标/定做/加工 无油衬套 翻边/法兰衬套 自润滑轴承关键词：无油衬套、铜套加工、自润滑轴承。大连一铭精工机械有限公司专业生产铜套 非标/定做/加工 无油衬套 翻边/法兰衬套 自润滑轴承。Copper bushing non-standard / custom made / oil free bushing flange / flange bushing self-lubricating bearingKey words: oilless bushing, copper bush processing, self-lubricating bearing.Dalian Yiming Seiko Machinery Co., Ltd. specializing in the production of non-standard copper sleeve / custom / processing without oil bushing / flange self-lubricating bearing bushing flange.