What is the cheapest express from Changchun, Jilin to Kunshan, Jiangsu?

What is the cheapest express from Changchun, Jilin to Kunshan, Jiangsu? If time is not required, the cheapest is ordinary parcel (surface mail). . .

However, this kind of surface mail is mainly because the time is much slower, and it is also the cheapest mailing method in China.

If calculated by 10 kg surface mail, the charge is (how cheap is 35 yuan):

However, if Dayun and ZTO express delivery are used, most provinces and cities in China (outside the province) will charge: first weight 15 yuan/kg; 7 yuan/Jin. (It is also very reasonable, with speed, second only to SF)

If you use downwind and post EMS, it will be more expensive.

for reference only