Jiangyin Dongsheng Flange Co., Ltd. Manzil NO.10 Huangsixiang Road, Zone C, Yunting Industrial Park, Jiangyin City, Jiangsu, PR China E-mail jane@jydsflange.com dongsheng@jydsflange.com johnzhou@jydsflange.com Telefon Sotish: +86-510-86018217Qo'llab-quvvatlaydi: +86-15861600558