speciality construction

construction work using specialized techniques to overcome unuusual constraints

en-US/ˌspɛʃiˈælɪti kənˈstɹʌkʃən/
en-GB/spɛʃɪælɪtiː kənˈstɹʌkʃn/

หมวดหมู่:

underground constructionconstruction technique