Beijing Chaoyang District, air conditioning, drilling drilling water heater

Air conditioning, drilling, drilling water heater, Yuba drilling, punching range hood, exhaust fan drilling, gas pipeline drilling, water drilling up and down the floor drain drilling, punching toilet, Heating drilling, water drilling, channeling line off the wall drilling, drilling and other variety of chimney diameter ￠ 1cm- ￠ 25cm direct drilling holes, but if necessary can be connected in row drilling. 1. floor two drilling engineering drilling engineering. 2. The reinforced concrete wall drilling, diamond cut open the door, window. 3. The load-bearing walls punch, punch stone, a variety of sizes drilling project off the wall. 4. pavement drilling, roads, railways, bridges, playing ventilation holes, water hole, a variety of pipeline holes. 5. undertake professional entire building fire punch, punch drainage, ventilation pipes perforated punch heating pipes. Three perforated steel plate 1 perforated steel plate. ￠ 1cm- ￠ 3.5cm diameter holes into the hole at once.