All of the attachment holes are chamfered on the inside edges to prevent damaging the O-rings during installation of the nozzle and bulkhead see Eng.
所有的实习孔倒角对内部的优势,以防止破坏O型环在安装过程中的喷嘴和舱壁见工程。
Shanghai bovis metal CON ENG CO. , LTD Is a shareholding company , It specializes in the R&D. Production, installation and after—sales services of metal decoration products.
上海宝维士金属结构工程有限公司是一家股份制有限责任公司,是集金属装饰产品的研制、制造、安装以及售后服务为一体的专业化公司。
Shanghai bovis metal CON ENG CO. , LTD Is a shareholding company , It specializes in the R&D. Production, installation and after—sales services of metal decoration products.
上海宝维士金属结构工程有限公司是一家股份制有限责任公司,是集金属装饰产品的研制、制造、安装以及售后服务为一体的专业化公司。
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