相垂直的面为什么合并成一整体一直提示出错误

!===== 进料口1 =====
csys,0
R,3,12 !板厚12MM
ksel,none
k,301,-223,1650,-4
k,302,-178,1700,-4
k,303,237,1700,-4
k,304,237,1290,-4
k,305,137,1290 ,-4
a,301,302,303,304,305
csys,4
ARSYM,Z,all, , , ,0,0
csys,0
K,311,-210,1646,-4
k,312,-172,1692,-4
k,313,72,1485,-4
k,314,230,1485,-4
k,315,229,1298 ,-4
k,316,144,1298,-4
*do,i, 311,315,1
L,i,i+1
*enddo
adrag,364,365,366,367,368,,19
asel,none
a,311,312,313,314,315,316
agen,2,all,,,,,-340
adele,170
agen,5,all,,,,,-360
allsel