English?|? 簡體中文
Tianjin Tengteng Industry and Trade Co., Ltd. Tel:+8615710200841 E-mail:bill@oplentics-optics.com Address:No.85, Xihu Road, Nankai District, Tianjin City, China
Address::No.85, Xihu Road, Nankai District, Tianjin City, China
Telephone:+8615710200841(Mobile/Wechat/Whatsapp)
Email:bill@oplentics-optics.com
Contact:Bill Li
Tel:+86-22-27365306-8005
Skype: bill.li6