cement	hardness
365	45.0
220	17.0
240	18.0
215	16.0
255	19.5
220	16.0
250	26.0
230	20.0
240	24.0
250	28.0
240	20.0
250	21.0
220	14.5
365	44.0
200	12.0
185	10.0
305	27.0
305	38.5
250	26.0
345	40.5
250	25.0
365	41.5
220	16.5
365	43.5
240	20.0
365	40.5
250	25.0
365	41.0
250	27.5
265	28.0
365	45.0
345	40.0
380	47.5
365	49.5
215	15.5
310	28.0
345	40.0
215	15.0
380	49.0
255	16.0