人们认为，一心想削减成本的厂商们在注水牛奶中加入了有毒化学物质，借此来掩盖因此产生的蛋白质含量不足的质量缺陷。

Suppliers trying to cut costs are believed to have added the toxic chemical to watered-down milk to cover up the resulting protein deficiency.

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作为从事印制电路化学材料科研、开发、生产的专业化企业，我们不仅要帮助电路板生产厂商提升产品质量。

As engaged in printed circuit chemical materials research, development and production of specialized enterprises, we must not only help the circuit board manufacturers improve product quality.

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此外，在2010年，霸王洗发水的生产厂商还被指责在洗发产品中使用致癌化学物质。

And in 2010, the manufacturer of Bawang shampoo was accused of using dioxane, a cancer-causing chemical, in its hair products.

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