| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a resin-made tank which is easily and inexpensively produced and sufficiently pressure resistant. SOLUTION: This resin-made tank 1 is provided with a tank main body 2 which is made of synthetic resin and blow formed, and with a thread body 3 surrounding the main body 2. A cap 6 is integrally formed with a water inflow tube 9 and a hot water outflow tube 10. The water inflow tube 9 is inserted deeply into the tank main body 2. An electric heater 11 such as a sheath heater is mounted on a cap 7.</p> |
