Shanghai Wangyuan WP-L Flow Totalizer e talafeagai mo le fuaina o ituaiga uma o vai, ausa, kesi lautele ma isi mea. O lenei meafaigaluega ua faʻaaogaina lautele mo le tafe atoa, fuaina ma le pulea i le biology, suauu, vailaʻau, metallurgy, eletise eletise, vailaʻau, meaʻai, pulega malosi, aerospace, gaosiga o masini ma isi pisinisi.