A、<p><span style="font-size: 10.5pt; font-family: 宋体;">双韧型</span></p>
B、<p><span style="font-size: 10.5pt; font-family: 宋体;">无限外韧型</span></p>
C、<p><span style="font-size: 10.5pt; font-family: 宋体;">周木型</span></p>
D、<p><span style="font-size: 10.5pt; font-family: 宋体;">有限外韧型</span></p>
E、<p><span style="font-size: 10.5pt; font-family: 宋体;">周韧型</span></p>