A.50 B.80 C.100 D.150
A.320-350;≥150 B.335;150 C.350;≤150
A.1000mm B.500mm C.300mm D.75mm
A.2 B.1 C.3
A.500 B.1000 C.1200
A.5% B.10% C.15% D.20%