defective workmanship

基本解释

It's fully guaranteed against defective materials and workmanship under normal use.
在正常使用情況下保証不出現材料或技術方麪的缺陷。
This watch is warranted for one year from date of purchase against defective workmanship.
自購買之日起對裝配技術上的問題提供一年保脩。
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HUAHE guarantee to supply free replacement parts to any defective of HUAHE product which proved to be defective in material or workmanship when under proper operation during warranty period.
確認由於制造或材料不良等原因發生故障的任何零、部件都將免費提供更換件。

The warranty on the previous-generation LEAF's battery covered it against defective materials or workmanship for five years.
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