Home > Contact > Contact UsContact Us Fax：020-82075677，020-82075433 ADD：RM2401,Berkshire House,25 Westlands Road, Langtech Limited（Beijing） ADD:1120, Gongda Jianguo Hotel, No.100 Pingleyuan, Chaoyang District, Beijing Langtech (Guangzhou) Machinery Co.,Ltd Shanghai Branch ADD：Room A02,7/F,building G,Weijing center,2337 Gudai Road, Minhang District,Shanghai TEL：021-62960638 / 021-62960639 Langtech Limited（Chongqing） ADD:Room 403,building 1,Jinkai Xiexin center,68 Jinkai Avenue,Yubei District,Chongqing Langtech（Shanghai）Machinery Co.LTD ADD:Unit 1309，Zhongshan Plaza，No. 1065，