备用部件 meaning in English

alternate block
replacement parts
spare unit
standby unit

Item based warranty loss recording and spare part order processing
保修期外备用部件纪录和购买流程。
Sabunindustrialco . , ltd . was founded in 1919 as a textile manufacturer . the company started manufacturing sewing mahne parts in 1945 , since then it has been the specialist in hook and bobbin case indutry for more than 45 years
全公司的产品还作为备用部件除了在国内以外还在海外80多个国家被使用，并受到高度评价。