What are the iron pipe packaging manufacturers in Zhengzhou?

1. According to Baidu map, Zhengzhou Hongyuan Color Steel Products Co., Ltd. is the main manufacturer of iron pipe packaging in Zhengzhou.

2. Zhengzhou Huayu packaging co., ltd.

3. Zhengzhou Jinyuan Color Steel Products Co., Ltd. ..

4. Zhengzhou Shuangyu Color Steel Co., Ltd. ..

5. Zhengzhou Jinyuan Tin Box Packaging Co., Ltd. ..