Children's swimming ring, lifebuoy pvc inflatable with a diameter of 70cm
▸ Material composition: PVC thickened double airbag structure
▸ Structural characteristics: single and double layer composite + inward turn edge anti-leakage design
▸ Base size: diameter before inflation Φ70cm
▸ Safety standard: buoyancy coefficient of children's lifebuoy ≥0.15kN
▸ Process treatment: high-frequency welded seam strength ≥ 3.5MPa
▸ Structural characteristics: single and double layer composite + inward turn edge anti-leakage design
▸ Base size: diameter before inflation Φ70cm
▸ Safety standard: buoyancy coefficient of children's lifebuoy ≥0.15kN
▸ Process treatment: high-frequency welded seam strength ≥ 3.5MPa
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