duo mill twin rolling mill two-high cogging mill two-high mill two-high rolling mill
二辊式轧机;
big mill roughing mill breaking down mill rougher mill rough mill strand of rolls
粗轧机;
big mill roughing mill breaking down mill rougher mill rough mill strand of rolls
粗轧机;
big mill roughing mill breaking down mill rougher mill rough mill strand of rolls
粗轧机;
big mill roughing mill breaking down mill rougher mill rough mill strand of rolls
粗轧机;