Olsem as ikwipmen bilong skelim na menesim ol wara risos, ol samting ol i makim bilong wokim ol wara mita i save mekim wok bilong skelim stret, laip bilong sevis, na pasin bilong senisim envairomen. Wantaim gutpela wok bilong stretim ol wara saplai sistem na ol gutpela mak bilong wara i go antap, wok bilong saiens long makim ol samting bilong wokim wara mita i kamap olsem wanpela bikpela samting insait long indastri.
Ol 'mechanical water meters' i save yusim 'cast brass' olsem nambawan samting bilong ol, bikos em i no inap bagarap na em i no inap bagarap, na dispela i mekim na em i stap gut longpela taim. Tasol, ating i gat 'lead' insait long bras i kirapim tok pait long envairomen, na dispela i mekim na sampela kantri na rijen i tambuim wok bilong en, na dispela i mekim ol kampani i wokim ol 'copper alloys' o ol narapela samting we i no gat 'lead'. Long ol yia i go pinis, ol plastik bilong enjiniaring olsem 'ductile iron' na 'reinforced nylon' i kamap bikpela samting long ol mita bilong ol manmeri bikos ol i no hevi tumas, ol i no inap bagarap, na ol i no gat bikpela pe. Ol dispela samting i bin helpim tru long karim wara i gat asid na alkalin, na dispela i mekim ol i gutpela tru long ol ples we i gat miks wara long en long ol rurel eria o long ol indastriel envairomen.
Ol smat wara mita i kamap na dispela i mekim na ol i laikim moa ol samting bilong yusim. Long pasim ol ilektronik komponen i nidim ol strongpela enjiniaring plastik na ol 'composite rubber' bilong mekim wara na das i no inap bagarap longpela taim. Olsem, ol i save yusim 'modified polycarbonate' o 'glass fiber reinforced nylon' long wokim ol mita kes, bilong skelim strong na insulesen. Ol samting we i save ron insait long wara i save kamap long 'stainless steel' o 'ceramic' bilong stopim ol 'metal ion' long bagarapim. Ol wet-taip wara mita i save yusim 'copper alloy overmolding' long ol 'gear train' bilong ol, na dispela i save mekim 'transmission' i wok stret na tu i no save bagarap.
Seleksen bilong ol samting i mas stret tu long spesifik instolesen senario. Long ol mita bilong wara we ol i planim, ol i mas tingim pH bilong graun, na planti taim ol i save putim ol 'epoxy resin coating' bilong lukautim ausait. Long ol hap we i gat bikpela -temperature, ol i mas i gat 'thermal stability' bilong stopim 'expansion' na 'deformation' we inap long mekim 'seal' i bagarap. Intanesenel standet ISO 4064 na nesenel standet GB/T 778 i tok klia long strong bilong ol wara mita materiel, na i tok ol i mas stap fri inap long 5-pela yia aninit long presa na wara kwaliti kondisen.
Long bihain taim, wantaim divelopmen bilong ol nupela teknoloji bilong ol samting, ol laitpela, antibakteriel, na anti-komposit materiel i ken mekim wok bilong wara mita i kamap gutpela moa. Indastri i mas painim wanpela balens namel long kos kontrol na longpela taim reliabiliti. Ol i mas yusim ol 'standardized testing' long painim ol gutpela samting we i gutpela long ol ples we i gat planti samting long en, na dispela bai kamapim gutpela as bilong kamapim gutpela wok bilong lukautim wara. Wok bilong yusim ol samting long sait bilong saiens i no rilet tasol long prodak yet, tasol tu em i wanpela bikpela garanti bilong gutpela menesmen bilong ol wara risos.