glue 	film_thick 	strength
A 	13   		46.5
A 	14   		45.9
A 	12   		49.8
A 	12   		46.1
A 	14   		44.3
B 	12   		49.9
B 	10   		50.2
B 	11   		51.3
B 	12   		49.7
B 	14   		46.4
C 	15 		46.3
C 	14 		47.1
C 	11 		48.9
C 	11 		48.2
C 	10 		50.3
D 	16 		44.7
D 	15 		43.0
D 	10 		51.0
D 	12 		48.1
D 	11 		48.6