Kamfanin Shanghai Wangyuan WP-L Flow Totalizer ya dace da auna dukkan nau'ikan ruwa, tururi, iskar gas da sauransu. An yi amfani da wannan kayan aiki sosai don tattara kwarara, aunawa da sarrafawa a fannin ilmin halitta, man fetur, sinadarai, aikin ƙarfe, wutar lantarki, magani, abinci, sarrafa makamashi, sararin samaniya, kera injina da sauran masana'antu.