He whānuitia te whakamahinga o tēnei raina mō te hanga i ngā kirikiri PVC me ngā kirikiri CPVC. Mā te tīwiri tika, ka taea te whakaputa kirikiri PVC ngohengohe mō te taura PVC, te ngongo ngohengohe PVC, ngā kirikiri PVC pakari mō ngā paipa PVC, ngā hononga paipa, me ngā kirikiri CPVC.

Ko te rere o te tukanga o tēnei raina hei pupuhi: Paura PVC + tāpiri --- whakaranu --- whāngai rauemi --- extruder tīwiri māhanga kōniko --- mate --- pelletizer --- pūnaha whakamatao hau --- wiri

Ko tēnei mīhini whakaputa hau PVC he mīhini whakaputa tīwiri takirua kōniko motuhake, ā, mā te pūnaha tango hau me te pūnaha whakahaere pāmahana tīwiri ka whakarite kia pai te kirihou o te rauemi; He pai te ōrite o te pelletizer kia ōrite ki te mata o te mate whakaputa hau; Ka pupuhihia e te pupuhi hau ngā granules ki roto i te silo i muri tonu i te hinganga o ngā granules.