| 摘要 |
PURPOSE: To enhance the strength of a breakable part of a U-shaped passage to be transferred from a tank. CONSTITUTION: The connecting width B of a sandbanklike bead 26b formed at a center of a plurality of sandbanklike beads 26 formed at a U-shaped passage from a tank is increased larger than the connecting widths A, C of the sandbanklike beads 26a, 26b formed at both ends. The connecting strength of the central part to be transferred from the tank to the passage is increased, thereby preventing the breakage of the part due to high-pressure fluid of the part. |
