1. φ35*760*792MM grooved solid +304#, hardness 50±5 degrees, gray on both sides 116MM
2. φ35*760* 79mm ² grooved solid +304#, hardness 50±6 degrees, gray on both sides 92MM

1. φ35*760*792MM grooved solid +304#, hardness 50±5 degrees, gray on both sides 116MM
2. φ35*760* 79mm ² grooved solid +304#, hardness 50±6 degrees, gray on both sides 92MM