规格	W	L	a	b	图位
JRP-48X75	48	75	-	45	A
JRP-48X100		100		50
JRP-48X125		125		75
JRP-48X150		150		100
JRP-48X200		200		150
JRP-75X75	75	75	-	25
JRP-75X100		100		50
JRP-75X125		125		75
JRP-75X150		150		100
JRP-48X200		200		150
JRP-100X100	100	100	50	50	B
JRP-100X125		125		75
JRP-100X150		150		100
JRP-100X200		200		150
JRP-100X250		250		200
JRP-125X125	125	125	50	75
JRP-125X150		150		100
JRP-125X200		200		150
JRP-125X250		250		200
JRP-150X150	150	75	100	45
JRP-150X200		100		70
JRP-150X250		125		95