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He hononga ngā kirihou wera PVC me C PVC engari he rerekē te nui o te haukini, te kaha ki te pāmahana, ngā whakamahinga me te utu. E whakataurite ana tēnei aratohu i a PVC me C PVC , e whakamārama ana i te wāhi e whakamahia whānuitia ana ia rauemi, ā, e āwhina ana i a koe ki te whiriwhiri i te kōwhiringa tika mō ngā paipa, ngā rau PVC me ngā whakamahinga ahumahi.