PVC drainage pipes: advantage: corrosion resistant:resist chemical matters or the electron chemical corrosion high flow capacity:the smooth interior wall result in the low pressure and high volume more than metal pipe. more longevity ModelSize(mmxmm)AIG50-1¢50AIG50-2¢50AIG50-3¢50AIG50-4¢50AIG75-1¢75AIG75-2¢75AIG75-3¢75AIG75-4¢75AIG98-1¢98AIG98-2¢98AIG110-1¢110AIG110-2¢110AIG110-3¢110AIG110-4¢110AIG160-1¢160AIG160-2¢160AIG160-3¢160AIG160-4¢160AIE200-1¢200AIE200-2¢200AIE200-3¢200