To whom it may concern: 敬启者：
We hereby certify that: 我们在此特证明：
1. All drums are neutral packing. 所有圆桶均为中性包装。
2. No Chinese words or any hints to show the products made in China.
无任何中国字或迹象表明此产品产于中国。
3. No any printing materials are allowed to fill in drums.
圆桶上没有任何印刷资料。
ABC Trading Company