7 Permanent weld backing bars, consumable inserts and nonconsumable insert rings are not permitted without prior written approval from SECCO.
事先没有赛科公司的书面批准,允许有永久焊接的支撑杆、熔化性嵌条和可熔嵌环。
7 Permanent weld backing bars, consumable inserts and nonconsumable insert rings are not permitted without prior written approval from SECCO.
事先没有赛科公司的书面批准,允许有永久焊接的支撑杆、熔化性嵌条和可熔嵌环。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其达内容亦本软件的观点;若发现问题,欢迎向我们指正。