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

Table 7

Simulation results of freight volume and period in Scheme  2.

Country A	Land freight in A	Port throughput in A	Starting sales time of ε in A
	18900 tons	18000 tons	The 59th day
Country B	Land freight in B	Port throughput in B	Starting sales time of ε in B
	37600 tons	35650 tons	The 61st day
Country C	Land freight in C	Port throughput in C	Starting sales time of ε in C
	56860 tons	46100 tons	The 40th day
Country D	Land freight in D	Port throughput in D	Starting sales time of ε in D
	16500 tons	12600 tons	The 68th day