Roland returned to Krasbourg from the silver sky, and the time was about two or three o'clock in the afternoon. After working all night, he yawned a lot, and then he got up and teleported to the Karon Industrial Zone, where he found Semyon Ivanovich, the director of the Management Committee, and asked him what the row of warehouses behind the compound of the Management Committee was filled with.

"If you don't have any important supplies, empty them quickly, I'll be useful."

"Your Highness, there is nothing important in that row of warehouses, but I don't count it, it is the warehouse of the militia battalion of the industrial zone, the key is in the hands of Captain Viktor Rostov, if you don't occupy the warehouse with his permission, that guy's hot temper will attack, I can't resist it!" Semyon Ivanovich shrugged his shoulders and spread his hands.

"Captain Viktor Rostov?" Roland remembers this man, who had made a good impression on him when he had commanded the battle against the "Terror-lagoon" monster, and although he had a very unsociable temper, he was a decent and upright man, and he was very prestigious among the militia and young workers of the industrial area.

Roland thought for a moment, took out the magic guide and handed it to Semyon Ivanovich, asking him to immediately invite Captain Viktor to meet with the management committee.

Captain Victor is a typical soldier who regards obedience to orders from his superiors as his duty, let alone being summoned by His Royal Highness the Prince himself. Within five minutes Pegasus arrived, leaped off the galloping horse, strode up to Roland, and gave a military salute.

"Your Royal Highness, Captain of the Army, Captain of the Karon Industrial Zone, Reserve Instructor Viktor Rostov is at your disposal!"

Seeing his resolute momentum, Roland had to suspect that even if he ordered him to immediately draw his knife and commit suicide, he would not hesitate for a moment.

"Very well, Captain Viktor, and Semyon Ivanovich, you two come with me."

Roland walked to the door of the warehouse, motioned to the captain to open the door, went in to observe, and was satisfied with the spacious space and clean environment, so he placed the silver ring in his hand in the center of the warehouse, waved his hand to signal the two to retreat, and whispered the activation spell of "Legendary Ring Plane Portal", the small silver ring burst into a dazzling light, and in an instant expanded into a huge silver ring with a diameter of 50 feet, and the outer edge almost reached the warehouse wall.

The director of the management committee was taken aback by this abrupt abnormality, and couldn't help but take two steps back towards the door. Captain Victor also looked surprised, but did not make a panicked move, showing extraordinary determination.

Roland crouched down, took out a silver chain inlaid with sapphires from his storage bag, wrapped it around the silver ring, and blessed it with a 7-ring "escape technique". After completing the spell, he turned to face the director of the management committee and the captain of the garrison, and said: "The device set up in the warehouse is a portal to the silver sky, and important materials will be transmitted over every once in a while, and this warehouse will be handed over to the two of you to jointly manage in the future, Semyon Ivanovich, go back and get some cement to strengthen the outer wall of the warehouse, and install two blessings." Magic Alert's security door, except for me who has a set of keys, you and Captain Victor each have a key, and the two of you can only open the two doors and open the warehouse, and then follow this rule, understand? ”

"Understood!" The director of the management committee and the captain of the garrison were aware of the heavy responsibility, and made a commitment in unison, and their faces were extremely serious.

Roland nodded, and then said: "The two of you are the first insurance of the warehouse, in addition, I have also blessed the 'escape technique' on the ring portal, in case the warehouse is attacked by a strong enemy, you can't resist it, you can retreat to the warehouse, as long as you tear off the silver chain tied to the ring portal, the spell will be triggered, and it will be transferred to me along with the ring portal, this is the second insurance." ”

In fact, there is a third line of insurance, which is the personality fragment that Eltaran attaches to the circular portal with a legendary psychic ability, but Roland does not tell Semyon Ivanovich and Captain Viktor. Although these two people are more credible, considering the strategic value of this passage connecting the silver sky and Krasbourg, Roland thinks it is better to be cautious - the so-called harm must not be had, and the heart of defense is indispensable.

For two days in a row, Roland sat in the office building of the Industrial Zone Management Committee, supervised the renovation of the warehouse on the spot, and personally applied multiple prohibitions and alarm spells to rest assured.

The warehouse claims to be a warehouse rented by the "Koras-Otto Astral Trading Company" to stock up on strategic materials purchased by the Astral Plane, and it is inconvenient to disclose to the outside world what the specific materials are and how they are transported.

Only Roland and a very small number of people who know the inside story know that the warehouse is mainly used to hoard magic crystals and astral substances, and it is directly teleported through a "two-way door".

The maximum weight of the Legendary Circular Plane Portal is 500 tons per day, and the maximum total weight of the materials that can be transported for a year is about 180,000 tons, assuming full capacity transportation every day. Of course, this is only a theoretical value, and in reality it is impossible to have 500 tons of supplies to be delivered every day.

Of this 180,000 tons of annual capacity, only a very, very small part is used to carry refined magic crystals, which are more expensive than diamonds, and most of the carrying capacity is used for star quality.

Roland remembers his homeland of China, where the production of natural rubber in 2015 was about 800,000 tons, ranking fifth in the world...... Of course, there are more synthetic rubbers, with an annual output of more than 5 million tons, ranking first in the world.

In terms of the current demand market in the Far East, 30,000 or 40,000 tons of rubber per year is enough. The production capacity of the Silver Sky Star Factory is aimed at this first, and it is still too early to reach the transportation ceiling of the legendary two-way gate - 180,000 tons per year. Roland doesn't need to worry about capacity constraints for the time being.

With the material suitable for tires, Roland began to set up a technical team to improve the overall structure of the carriage in order to achieve better shock absorption and acceleration.

……

On the first weekend of July, as it was nearly dusk, a road from Krasbourg to Great Rapids was barricaded and cordoned off by the Mounties.

Travelers were forced to stop their carriages at the barricades, the queue grew longer, and the crowd became restless and the atmosphere was inexplicably tense.

At this moment, a tall, burly, bald old man jumped out of the luxurious carriage parked on the side of the road, looked at the barricade with a frown, and walked in the direction of the mounted police with his hands apart from the crowded crowd.

Two dragon vein men dressed in the grass-green uniforms of "Longcheng Animal Husbandry Company" hurriedly followed, and whispered to persuade the bald old man:

"Mr. Mikhail, this is not the Lucia Plateau, you better leave it alone."