Does anyone have or know where I can get underground ductile iron fittings (bell & spigot). Just look for a STD 4" 90 degree ductile iron (cast iron) elbow AutoCAD block. Would even settle for a cut sheet dimensioning the elbow completely so I can make a block myself. I have found some cut sheets, but only gives the basic dimensions ......more detail dimensions needed on drawing the bell (hub) part of the elbow. Thanks for any help