manufacture/multi_level_mrp/security/ir.model.access.csv

1	id	name	model_id:id	group_id:id	perm_read	perm_write	perm_create	perm_unlink
2	access_mrp_inventory_user	mrp.inventory	model_mrp_inventory	mrp.group_mrp_user	1	0	0	0
3	access_mrp_move_user	mrp.move	model_mrp_move	mrp.group_mrp_user	1	0	0	0
4	access_mrp_product	mrp.product	model_mrp_product	base.group_user	1	0	0	0