Hiki i nā ʻano kikoʻī a me nā hiʻohiʻona o PVC twin-screw extruder ke hana i nā paipu o nā anawaena like ʻole a me nā mānoanoa pā like ʻole. Hoʻolālā kūikawā i hoʻolālā ʻia me ka plasticization like a me ka puka kiʻekiʻe. ʻO nā mea hoʻoheheʻe extrusion i hana ʻia me ke kila kila kiʻekiʻe, ka hoʻoheheʻe ʻana i loko o ka chrome plating, ka mālama polishing, ka lole a me ka pale ʻana i ka corrosion; me ka lima kiʻekiʻe-wikiwiki nui i hoʻolaʻa ʻia, maikaʻi ka maikaʻi o ka ʻili o ka paipu. Hoʻohana ka mea ʻoki kūikawā no ka paipu PVC i kahi mea hoʻopili wili, ʻaʻole pono e hoʻololi i ka mea paʻa me nā anawaena paipu like ʻole. Me ka chamfering device, oki, chamfering, hoʻokahi-ʻanuʻu molding. Kākoʻo i ka mīkini bele pūnaewele koho.