SN200 Series
l Model NO.:SN205,SN206,SN207,SN208,SN209……SN230,SN232
SN300 series
l Model NO.: SN305,SN306,SN307,SN308,SN309……SN330,SN332
SN500 Series
l Model NO.:SN505,SN506,SN507,SN508,SN509……SN530,SN532
SN600 Series
l Model NO.: SN605,SN606,SN607,SN608,SN609……SN630,SN632
SN/SSN3000 Series SN/SSN3100 Series
l Model NO.:SN/SSN3024,SN/SSN3026,SN/SSN3027,SN/SSN3028,……SN/SSN3030,SN/SSN3032
SN/SSN3124,SN/SSN3126,SN/SSN3127,SN/SSN3128,……SN/SSN3130,SN/SSN3132
l Material：Cast iron，Ductile iron，Cast steel
l Standard：GB/T 7813-1998, ISO113:1999
