Address: No.557, Mao Cheng West Road, Yinzhou District, Ningbo
B: Ningbo Yuhong Waterproof Technology Co., Ltd.
Address: 207 1-2075, Canghai Road, Yinzhou District, Ningbo
These companies are relatively strong and professional in this field, and they have a good reputation and relatively guaranteed quality. I hope I can help you.