Below is Android only partition table.
Save below to a file "Chuwi_Vi8_AndroidOnlypartition_20170719.tbl".
Use "ManufacturingFlashTool.exe".

partition_table=gpt
create -z /dev/block/mmcblk0
create /dev/block/mmcblk0
boot -p /dev/block/mmcblk0
reload /dev/block/mmcblk0
add -b 40 -s 131072 -t efi -u C12A7328-F81F-11D2-BA4B-00A0C93EC93B -l ESP -T 0 -P 0 /dev/block/mmcblk0
add -b 131112 -s 131072 -t data -u 80868086-8086-8086-8086-FFFFFFFFFFF0 -l reserved -T 0 -P 0 /dev/block/mmcblk0
add -b 262184 -s 32768 -t data -u 80868086-8086-8086-8086-000000000100 -l boot -T 3 -P 15 /dev/block/mmcblk0
add -b 294952 -s 32768 -t data -u 80868086-8086-8086-8086-000000000101 -l recovery -T 3 -P 14 /dev/block/mmcblk0
add -b 327720 -s 32768 -t data -u 80868086-8086-8086-8086-000000000102 -l fastboot -T 3 -P 13 /dev/block/mmcblk0
add -b 360488 -s 32768 -t data -u 80868086-8086-8086-8086-FFFFFFFFFFF1 -l reserved_1 -T 3 -P 0 /dev/block/mmcblk0
add -b 393256 -s 131072 -t data -u 80868086-8086-8086-8086-000000000104 -l test -T 3 -P 12 /dev/block/mmcblk0
add -b 524328 -s 65536 -t data -u 80868086-8086-8086-8086-000000000001 -l panic -T 0 -P 0 /dev/block/mmcblk0
add -b 589864 -s 32768 -t data -u 80868086-8086-8086-8086-000000000002 -l factory -T 0 -P 0 /dev/block/mmcblk0
add -b 622632 -s 32768 -t data -u 80868086-8086-8086-8086-000000000003 -l misc -T 0 -P 0 /dev/block/mmcblk0
add -b 655400 -s 32768 -t data -u 80868086-8086-8086-8086-000000000004 -l config -T 0 -P 0 /dev/block/mmcblk0
add -b 688168 -s 2097152 -t data -u 80868086-8086-8086-8086-000000000005 -l cache -T 0 -P 0 /dev/block/mmcblk0
add -b 2785320 -s 524288 -t data -u 80868086-8086-8086-8086-000000000006 -l logs -T 0 -P 0 /dev/block/mmcblk0
add -b 3309608 -s 2097152 -t data -u 80868086-8086-8086-8086-000000000007 -l system -T 0 -P 0 /dev/block/mmcblk0
add -b 5406760 -s 55197040 -t data -u 80868086-8086-8086-8086-000000000008 -l data -T 0 -P 0 /dev/block/mmcblk0
reload /dev/block/mmcblk0