Spiral ígwè ọkpọkọ chọrọ ọgwụgwọ mpụga iji gbakwunye ogologo oge: 1. A na-ehicha elu nke anticorrosive spiral tube na ihe mgbaze na emulsions, nke nwere ike wepụ ihe ndị dị n'elu ala nke spiral tube, ma ọ pụghị iwepụ nchara, oxide scale. ịgbado ọkụ flux, wdg, otú ihicha ...
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