What about Wuxi Dels Environmental Detection and Treatment Co., Ltd.?

Not bad. I have several years of testing and management experience, and I send people to Beijing to participate in national training every year. Over the years, I have successfully managed many cases. They have a Yangguan store: selling activated carbon, bamboo charcoal, sepiolite and some commonly used medicines in Wal-Mart. It's at No.207 Hongxing Road, nanchang district, Wuxi. You can search them online.