... (mm)Connection Bolts Type 80mmDuctile Iron,PVCu,Cast Iron,Steel,Cast Iron Met&Imp AC88.1-102.4M16*603" ... .6-127.8M16*704"150mmDuctile Iron,PVCu,Cast Iron,Steel,Cast Iron Met&Imp AC158.2-181.6M20*806 ... .1-235.0M20*908"250mmDuctile Iron,PVCu,Cast Iron,Steel,Cast Iron Met&Imp AC272.0-289.0M24*8010 ... "300mmDuctile Iron,PVCu,Cast Iron,Steel,Cast Iron Met&Imp AC322.9-339.4M24*80Flanged ...