【詰まり抜き】外の桝の蓋が開かない！？こんな時どうする？！職人による高圧洗浄で排水管をきれいに掃除！すっきり！[drain][排水溝掃除][現場]
12:37
Grease trap is clogged and drainage is impossible! Do you get out before it overflows?
19:47
"Big Rock Crusher Machine: A Giant in Action"Big Rock Crushing: A Powerful Process"#stonecrusher
19:44
Measuring conducted emissions with LISN
14:24
Can't the lid of the outer box open? What would you do in such a case?
4:38
※閲覧ご注意※ 地上世界では見られない！？ ツブツ・ブ・カーン洞窟（交野市下水道遺産） 交野市 下水道課
51:24
This property took ALL I HAD which almost WASN'T enough...
25:58
FREE water forever. LEGALLY!!!!
16:54