Wāhanga 3: Ngā Mahi Āwhina Tuatahi mō te Waikawa Oxalic
Te pā ki te kiri me te waikawa oxalic: Tangohia tonutia ngā kākahu kua pangia, ka horoi i te wāhi kua pāngia ki te nui o te wai rere mō te 15 meneti pea. Rapua he awhina hauora.
Ki te pā ki ngā kanohi me te waikawa oxalic: Hiki ake ngā kamo, ka horoi pai i ngā kanohi ki te wai rere, ki te tote rānei mō te 15 meneti pea. Rapua he awhina hauora.
Te Manawa o te Waikawa Oxalic: Nekehia te tangata i pangia ki te hau hou. Kaua e āraia te ara manawa. Mena he uaua te manawa, hoatu he hāora. Mena kua mutu te manawa, me mahi tonu te manawa horihori. Rapua he awhina hauora.
Te horomitanga o te waikawa oxalic: Horoi te puku ki te wai, ki te wai rānei kua konatunatua ki te konupūmā lactate, te konupūmā gluconate, te wai raima rānei i te wā e taea ai. Kātahi ka tukuna he 40 karamu o te hukahuka ki roto i te puku.

Waikawa Oxalic nā Shandong Pulisi Chemical Co., Ltd.
I whakatūria i te tau 2006, ko Shandong Pulisi Chemical Co., Ltd. he kaiwhakarato waikawa oxalic ngaio me te pono, me te 20 tau o te wheako kaweake. E 3,000 tana o te waikawa oxalic te kaha whakaputa ā-marama, me te parakore tae atu ki te 99.6% min. Kei a mātou ngā whare putunga whaiaro i Qingdao, Tianjin, Shanghai me Zibo Free Trade Zone, e tautoko ana i te tukunga 100% i te wā tika me ngā wā arahi tere i roto i ngā rā 7–15. Kua paahitia e ā mātou hua ngā tiwhikete ISO9001, SGS, BV, ā, kua kaweakehia ki neke atu i te 30 whenua puta noa i te ao. Ka whakaratohia e mātou he tuku pumau, he utu whakataetae me te ratonga mekameka katoa mō ngā hoa mahi o te ao.