manual chain hoist造句

Shuangniao machinery , specializing design and manufacturing of electric chain hoist , manual chain hoist , lever hoist and various high tensile sling assembly , is a group corp . , which consists of shanghai shuangniao machinery co . , ltd . , shuangniao machinery co . , ltd . , also
双鸟机械是一家专业从事设计，制造环链电动葫芦，手拉葫芦，手扳葫芦及各种高强度吊挂具的集团公司，它包括上海双鸟机械有限公司，浙江嵊州双鸟工业园区和浙江双鸟机械有限公司，是中国最大的民营起重企业。
It's difficult to find manual chain hoist in a sentence. 用manual chain hoist造句挺难的