Hauj lwm lawm
Kev tsis
Nta:
Tag nrho Length: 5m
Ntim: 1 Pcs
Hloov kho daim kab xev uas' yooj yim rau nqa ncig
Tsim nyog rau kev ntsuas alkaline lossis acid qib ntawm cov kua
Universal pH ntawv kuj tseem zoo rau Kev Kawm Txuj Ci, cov khoom zoo uas yuav tsum muaj nyob rau hauv txhua qhov chaw kuaj thiab hauv tsev los ntsuas thiab tshuaj xyuas cov dej tsis zoo, tso zis, qaub ncaug, av, alkaline noj zaub mov, thoob dej yug ntses thiab lwm yam.
PH dav dav 1-14 5m nrog cov xim sib txawv PH nplai rau kev sib piv
Kev kuaj strip xim hloov yuav tsum tau sib phim nrog cov pH nplai xim daim duab hauv li 15 vib nas this
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