Benefits: protects the spinal structure. Heart lung in good position, not pinched by the shade, crooked body. The eyes are well protected. Feed the brain blood well.4. sitting posture working properly, the best-Correct Chairs: have title sure back, lumbar support as well. Face sitting Chair's firmware, hold tight buttocks, pelvis does not slip, no crumpled before, or after. Seat height just enough to sit people work not bowed, folded stock.
đang được dịch, vui lòng đợi..
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