Yihaoya Keliban (Yinshengtai Taixinyuan Shop)

Xinzhongze Yakeli

Xinshengjia Yakeli (Yinshengtai Taixinyuan Shop)

Hongyunda Copper Materials

Qingdao Chengyang Building Materials Wholesale Market (Xiucheng Road)

Hongxinhao Metal (Yinshengtai Taixinyuan Shop)