Factory workshop of the company holding the shield spot welders, fitters gloves hitting, drilling workers dig wearing flat mirror, wearing sunglasses cutting gas cutting work.

该公司机厂车间内焊工手持防护罩点焊，钳工戴着手套击打，钻工戴着平镜挖凿，气割工戴着墨镜切割。

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The union claims the move would lead to skilled workers, including electricians, pipe-fitters and plumbers, being forced to work on semi-skilled grades and losing up to a third of their pay.

BBC: North Lincolnshire oil refineries workers protest