Setulo se phahameng sa ergonomic YG-JNS-809: S-shaped bionic curve ea setulo se ka morao, moralo o matla o khathollang letheka, o lumellana le li-curvature tsa 4 tsa mokokotlo oa motho, o boloka kelello e phetseng hantle ea mokokotlo, saense e tataisa mesebetsi ea mokokotlo, ka boiketlo. e ts'ehetsa mokokotlo le mahetla, 'me e kopa ...
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