SPF setting when using Hong Kong ISP smtp server

Hong Kong ISP smtp server
SPF setting
smtp.bbmail.com.hk
v=spf1 a mx include:incnets.com ~all
smtp.mail.hkbnes.net
v=spf1 a mx include:mail.hkbnes.net ~all
corpmail1.netvigator.com
v=spf1 a mx include:netvigator.com ~all
mail.on-nets.com
v=spf1 a mx include:hostedexchange.asia ~all