concrete product HOME 콘크리트제품 흄관/VR관 유공관 유공관 ◆ 유공흄관 ◇ 제품사진 · 상세도 ◇ 제품규격 호칭안지름 (D)D1D2D3D4두께 (T)L2L3구멍지름구멍수1열의 구명수첫구멍 까지의 거리열의수 (n)관몸체의 참고 접수 면적 (cm) 2502503143102983702890321750101005113 3003003683643504243090361760121005136 3503504224184044823290361770141005158 4004004784744605443595362255111005209 4504505345305166063895362260121205228 5005005925885746724295362266111206250 600600708704690804501003622786~712012296 70070082482080293658105402296812012364 8008009409369181068661104022108912012410 90090010581054103612047511440221201012012465 10001000117211681150133282120403072615012508 110011001286128212601458881254230786~715012551 12001200140013961374158695130423084715012593 13501350156615621540176810313542351089150121039 150015001734173017081954112140423512010150121154