▶ Inflation valve/check valve，used with inflation bulb;
▶ Top quality, air tightness guarantee;
▶ Material: zinc alloy;
▶ Specification
| Metal valve | Item No | Length | OD on two sides | Logo | Remark |
| MHM-1 | 34mm | 10mm, 7mm | Laser logo on the valve | ||
| MHM-2 | 32mm | 10mm, 7.4mm | |||
| MHM-3 | 31mm | 10mm, 7.7mm | |||
| MHM-4 | 10.4mm | 7.6mm | |||
| MHM-5 | 25mm, 13.7mm | 8mm, 8mm | |||
| MHM-6 | 38.5mm | 7.7mm | |||
| MHM-7 | 23mm | 7.5mm | |||
| MHM-8 | 75mm | 7mm | Special design |
