VIDEO: Non-Welding Pipe Connection(Distric Heating in Sweden) 무용접 지역난방 배관보수공사(스웨덴)

산업과학 Construction,Science/건설영상 Video|2018. 4. 8. 17:42


Non-Welding Pipe Connection(Distric Heating in Sweden) 


댓글()

티스토리툴바