Silinda gas
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Mmiri mmiri oxygen cylinder, 20mpa elu-nrụgide aluminum alloy gas cylinder,0.35L 0.5L 1L 2L n'èzí ndakpu mmiri obere gas cylinder.
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ethylene (H2C = CH2), nke kachasị mfe organic ogige mara dị ka alkenes, nke nwere carbon-carbon okpukpu abụọ.
