Poor workmanship

做工差───Poor workmanship

The burnt cover is obviously because of poor workmanship in your factory because the end-user will not bother to open that box.───烧坏的外壳很明显是因为贵公司工厂的粗糙做工，因为用户是不会去开那个盒子的。

It is quite evident that the cause of the rust is due to poor workmanship.───显然锈损是因做工粗劣造成的.

evident that the rust is due to poor workmanship.───表明生锈是因为粗糙的工艺。

It has something to do with poor workmanship and assembly.───这与工艺及安装质量不好有关.

problem may be due to poor workmanship.───问题可能是出在拙劣的工艺上。

The problem may be due to poor workmanship.───问题可能在于工艺太差。