Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd
Zhenjiang Greatwall Microtunnel Equipment Science & Technology Co., Ltd: Are you looking for a professional manufacturer of microtunneling machine? We specializing in R&D of microtunneling for 15 years, China top brand of mtbm. Machine size from 450 to 4000mm dia. More than 20 set machines worldwide.
