Details: description cast steel coupling for mill size 30"x60",33"x66",36"x72",39"x78",40"x80" - new material is1030 cast steel coupling for mill size 30"x60",33"x66", 36"x72",39"x78",40"x80" - new material is 2708 cast steel coupling for mill size 30"x60",33"x66",36"x72",39"x78",40"x80" - conversion is 1030 cast steel coupling for mill size 30x60,33x66,39x78,40x80 - conversion is 2708 cast steel coupling for mill size 30"x60",33"x66",36"x72",39"x78",40"x80" - machining charges cast steel crown pinion for mill size 30"x60",33"x66",36"x72",39"x78",40"x80" - new material is 1030 cast steel crown pinion for mill size 30"x60",33"x66",36"x72",39"x78",40"x80" - new material is 2708 cast steel crown pinion for mill size 30"x60",33"x66",36"x72",39"x78",40"x80" - conversion is 1030 cast steel crown pinion for mill size 30"x60",33"x66",36"x72",39"x78",40"x80" - conversion is 2708 cast steel crown pinion for mill size 30"x60",33"x66",36"x72",39"x78",40"x80" - profile , teeth cutting machining char