... per set1.International Q235 bridge steel ,white PVC manger, ball valve type automatic water equipment, white PVC water pipe, 3MM U type steel ... zero, damage rate of eggs is zero.3.White PVC trough, full new PVC material, resists compression, heat-resistant, not deformation, no ... double galvanized, use life is for 15 years.5.Ball valve type automatic water equipment: 360-degree rotating design, big flow ...