51吃瓜

??? ??? ???? ?? ???? ???? ???? ???? ??? ???? ??????? ?? ???? ??? ???? ??? ?????? ?? ????? ??? ????? ?? ????? ????? ???? ??? ????? ??? ???? ???. ??? ???? ???? ????? ?? ????? ??. ??????? ??????? ?? ????? ?????? ??? ?? ?? ??? ??????? ???? ?? ?? ????? ?????? ?????? ?? ????? ????? ??? ??? ???????? ???? ?????? ????? ?? ????? ?????? ?? ??? ????? ???? ??? ?????? ???????? ???? ??? ?????? ????? ???? ??? ?????? ?? ??? ??. To understand the cost of Sheet Metal Processing, it is necessary to know the processing algorithms and prices of sheet metal and hardware. ?? ?? ?????? ?????? ???? ?????? ???? ?? ???? ?? ?????? ?? ????? ??. ????? ???? ???? ?? ??? ??? ?? ??? ???? ????? ?? ??? ????? ????? ?? ???? ?? ???? ???? ?? ???:

?????? ?? ???? ?? ????? ????? ???? ?? ?? ??? ?? ????? ???? ?? ????? ?????? ?? ????? ???? ?? ????? ?? ????? 15-20% ????? ?? ???? ???. ??????????? ?????? ?? ??? ???? ????? ????

1? ???? ?? ???? ?? ?? ?????? ?? ???? ?? ??? ????? ??????? ?????? ?? ????? ??? ?????. ??????? ??? ???? ?? ?????? ?? ???? ?? ??? ????? ????? ??. 2? ?????? ?? ????? ????? ????? ????? ????? ?? ????? ????? ????? ????? ??? ?? ????? ??? ????? ????? ?? ????? ????? ????? ??

?????? ?????? ?? ??? ????? ?? ?? ?????? ?? ????? ?????? ???? ??. ???? ???? ????? ?? ????? ??? ????? ??:

1. ???? ????? ?? ???? ?? ????? ????? ????=????? ?????? ?????? ?? ????? ??????? ?? ????? ?????? ???? ??? ????? ?????? ?? ??????: ????? ?????? 2 ??? ?? ????? ?? ???? ?? ???? ??? ??? ??? 12 ????? ??? 22 ?? ??? 8 ????? ?? ????? ???? ?? ??? ??? 200000 ???? ?? ??????? ????? ??? 20 * 10000/2/12/22/8=47.4 ???/????? ??? ?? ????: ?? ???? ?? ??? ?? ?????? ??? ??? ???? ?????? ?? ????? ??? ???? ??? ?????? ?? ????? ??. ?? ??? ?? ??? ????? ????? ?? ???? 5400 ???? ????? ??? ??? ???? ????? ?? ???? 5400 * 3/22/8=93 ????/?????

?????? ????? ?? ????: ?? ??????? ????? ?? ????? ??? 2000 ??? ???????? ?? ????? ??? 22 ?? ??? 8 ????? ????? ?? ??? ???? ?? ???? ??. ???? 2000/22/8=11.4 ???/???? ??

3. Composition of surface treatment spraying cost: Spraying cost:=powder cost, labor cost, auxiliary material cost, equipment depreciation. The powder cost is calculated in square meters, with a unit price of 25-60 yuan/kg. Each kilogram of powder can be sprayed for 4-5 square meters. ?? ???? ?? ?? ???? ?? ???? 6-12 ????/???? ??? ??: 6000 ????/??? ????? ???? 22 ?? ??? 8 ????? ????? ???? ??????? 30 ???? ???/????? ???. Labor cost=6000/22/8/30=1.14 yuan/square meter Auxiliary material cost: Pre-treatment fluid, primer, curing furnace and other auxiliary materials are about 50000 yuan. Spray 30 square meters per hour for 8 hours on 22 days. ?????? ???? ?? ???? 50000/22/8/30=9.47 ???/???? ??? ??? ??? ???? ????? ?? ???? 10.6 ???/???? ??? ??? ???? ?????? ?? ???? ?? ????.

4、 Packaging fee

Packaging costs include packaging materials and labor costs. ??????? ?? ?????? ??? ??????? ?? ????? ?? ???????? ?? ???? ???? ??? ?????? ???? ???? ??????? 20-30 ????/????? ???? ??? ??? ???? ??????? ?????? ??? ??? ?? ???? ?? ????? ???? ???? ?? ??? ??????? ??????? ?? ??? ????? ??? ???? ??.

6? ?????? ???

?????? ?? ??? ?? ????? ??? ????? ??? ???? ???: ?????? ????? ???? ??? ???????? ??? ???? ???? ?????? ?? ??? ??????? ??? ??? ?? ???? ?? 10% ?? ??? ????? ???? ???.