Inquiry (采购产品): spiral stair i need a quote for a 6'-0" Dia. spiral stair. finished floor to finished floor elevation is 12'-8". it needs to have diamand plate treads. please quote as being built with steel and an oxide primer finish. **** Hidden Message ***** Dan Page 33460 Company: Lake Worth Steel Erectors E-mail: lakeworthsteel@aol.com **** Hidden Message ***** lakeworthsteel@aol.com