- 1、aplugforabungholeinacask.2、Savingatthespigotandwastingatthebunghole.3、Stepmotorsdrivespruegunstorealizetheaccuratepositioningoftheeccentricbungholeautomatically.4、Noonewouldnowsay,asmywife'sgrandmotherusedto,thattherewasnothingtodowithchildren...
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