(Now SF has a discount on large and heavy items. Anyone over 20+ kg can take SF's heavy cargo package, which is relatively cheap. )
SF Express charges 25kg for heavy goods and parcels 1 13 yuan, which can be settled by100-1/0 yuan. The average price is only 4.40 yuan/kg, which is a little cheaper than the logistics company.
(If the logistics company charges, it will probably be 160- 180 yuan. )
Please see the charge of 25 kg for SF heavy cargo parcels? FYI