Code:
cat file
ES FP,B1ES FP,70000,I,SL22,SL22 (70000)
ES FP,B2ES FP,80000,I,XX22,XX22 (80000)
VIL SJ,B1VIL SJ,20000,I,SL22,SL22 (20000)
VIL SJ,B2VIL SJ,20000,I,XX22,XX22 (20000)
VIL SJ,S3VIL SJ,25040222,N,SL22,SL22 (25040222)
VIL SJ,S4VIL SJ,25040222,N,XX22,XX22 (25040222)
MING NO,B1MING NO,240000,I,SL22,SL22 (240000)
MING NO,B2MING NO,240000,I,XX22,XX22 (240000)
BCHN SE,B1BCHN SE,20000,I,SL22,SL22 (20000)
BCHN SE,B2BCHN SE,20000,I,XX22,XX22 (20000)
awk -F, '{$1==$1 && $2==$2;a=$1;b=$4;c=$6;getline;d=$NF;print a","b","c"|"d}' file
ES FP,I,SL22 (70000)|XX22 (80000)
VIL SJ,I,SL22 (20000)|XX22 (20000)
VIL SJ,N,SL22 (25040222)|XX22 (25040222)
MING NO,I,SL22 (240000)|XX22 (240000)
BCHN SE,I,SL22 (20000)|XX22 (20000)