Research on the Impact of 3D Printing on the International Supply Chain

Table 3

Simulation results of freight volume and period in Scheme  1.

Country A	Land freight in A	Port throughput in A	Starting sales time of ε in A
	55700 tons	52800 tons	The 59th day
Country B	Land freight in B	Port throughput in B	Starting sales time of ε in B
	37550 tons	35650 tons	The 62nd day
Country C	Land freight in C	Port throughput in C	Starting sales time of ε in C
	120100 tons	88400 tons	The 40th day
Country D	Land freight in D	Port throughput in D	Starting sales time of ε in D
	7800 tons	8100 tons	The 67th day