Yang Ding, this person may not be a very pleasant person, when the old lady bought him, he temporarily replaced Lao Qin's housekeeper for a period of time, and then he has been responsible for outsourcing, which is a relatively easy thing, and even a dispensable thing.

So he existed like a transparent person in the Yang family, not to mention Yang Heng, even the old lady forgot that she had bought such a person back then.

But on this day, Yang Ding did a big thing for Yang Heng.

"Ah Lang, the housekeeper Yang Ding asks to see you." Lao Qin hurriedly ran over to report to Yang Heng. "Outer housekeeper, when did my family have an external housekeeper, why don't I know?" Yang Heng was stunned, when did he have a housekeeper in his family?

"Ah Lang, you forgot, when the old housewife was not there, by coincidence, a housekeeper was added, but later he did not cancel his housekeeper name, that is, he has been outside to manage some of the people's procurement, over the years, he has helped the family a lot, whether it is sent out to buy things, or I go to buy things, all through his guidance, this is the fastest time to buy things."

"Isn't this a shopping guide, there is such a person in our family?" Yang Heng still scratched his head a little, he really didn't think about it. "Oh, by the way, I remember that there was such a thing, at the beginning, there was indeed such a person in the family, because it seemed to be against you, and the family members were not familiar with the affairs of Chang'an City, so he was in charge of guiding the procurement, I, I actually forgot about him. Over the years. He's been doing this all along. Let him in, it's all my fault. Yang Heng scratched his scalp and said.

"Ah Lang, Yang Ding has seen Ah Lang." "Yang Ding, did you come to see me for something?" "Ah Lang, I saw such a bucket of things in the market, I want Ah Lang to see it, can you use this?"

It is a small wooden barrel with a lid sealed with a wooden wedge on top. "What's in there?" Yang Heng was very curious, and faintly smelled a familiar smell.

"Ah Lang, this is a kind of liquid brought by Hu Renxin, they are ready to go to Datang to test the water, they are optimistic about whether it sells or not, this thing, they also translate it not very accurately, what is it called stone juice, it is said that it is the juice that flows out of the stone, and this thing can be used as lamp oil to light the lamp. But they sold it for a long time, and they didn't sell it. This thing burns with a strange smell, besides, we in Datang now use electric lights, even when there is no electricity, we also use candles, that is, no matter how poor the family, they will buy a few candles for backup, who still buys this so-called lamp oil, but I found a problem, that is, this is very slippery with your hands, and Ah Lang you like some strange things, so I boldly bought it back, see if Ah Lang can use it. Although Yang Ding said a lot, he was still very apprehensive, this thing is really a useless thing, otherwise no one would buy it, he bought it boldly because of Yang Heng's curiosity, but is this really what Yang Heng needs?

"Stone juice, haha, it's oil." Yang Heng was excited, he heard the stone juice before, he really didn't know what this thing was, but after Yang Ding's description, he suddenly realized, this is oil, what should this thing be called in Datang, Yang Heng also arranged for someone to look for it, but he didn't find it, but the oil that he discovered for the first time was actually obtained from the Hu people, maybe because of his arrival, the oil in Datang disappeared directly, that is, it was useless, no one exploited it to use, but now, Fortunately, there was such a fool Hu Ren who brought oil to sell, and fortunately Yang Ding would think that Yang Heng would be interested in this and buy it back, otherwise, that Hu Man would definitely throw this thing away.

"Okay, okay, Yang Ding, you have made a contribution, otherwise, you will be responsible for finding these strange things for me in the future, and the salary is at the same level as that of the old Qin housekeeper." Okay, I have forgotten you all these years, so I will compensate you in terms of salary first, because I have forgotten, so what is this person, I have to check it, Yang Heng did not directly arrange a position for him.

"Xie Alang, what should I do with this stone juice?" "This, you let that Hu man transport it here, how much, how much we want, you can do it yourself, don't be too expensive."

Originally, Yang Heng also planned to arrange for someone to go outside to look for this oil, but since there is a ready-made one, then use it first, who knows when it will be found, this thing is underground, and it does not grow on the ground, or some places will become a small stream flowing out, but I didn't find it temporarily, isn't it, it's a big deal that this thing is expensive to buy with money, and when it is sold, the price will be higher.

"Yes, Ah Lang, it just so happens that there are still dozens of barrels from that Hu man, and I will go and buy them together." Yang Ding left, but Yang Heng fell into a burst of excitement, this Hu man is a fool, he actually traveled a long way to sell these things, if it wasn't discovered by Yang Ding, that Hu man is estimated to have lost all his money, and he will never ship this thing in the future, this Hu man should be a new man in business, otherwise how could he do such a stupid thing, but, I like it, the more fools like this, the better, and Yang Ding's vision is good.

"Ah Lang, I was wrong, I have seen this thing, but I didn't expect that Ah Lang would be useful, and even, I laughed at that Hu man, laughed at him for being a fool, who would sell these things, the smell of burning, and the big smoke."

"Hehe, this, it has nothing to do with you, you didn't see it, even Yang Ding was a little apprehensive, which shows that he has no bottom in his heart, but he really has an idea, okay, I don't blame you, it's just that these things are missed, and I don't blame you, but, I'm going to give you a task, you see this thing, you arrange someone to look for it, first look for it within a radius of five hundred miles around us, however, I don't know where this thing is, but this thing will definitely be there, it is said that someone found this thing in the Han Dynasty, And use it as lamp oil, and it has many names, some are called stone grease water, some are called stone paint, and there are other names, I don't know, and the color is also dark and light, okay, you go and arrange it. ”

"Yes, Ah Lang, then I will retire." Lao Qin, the housekeeper, is very disciplined, but his head is not very flexible, so he will never buy it back when he sees that thing, and Yang Ding, Yang Heng can see from this incident that his brain is very flexible, and he can give him some special tasks to do in the future.

"Oil, it's really a good thing, this is an important resource that Yang Heng had for various countries in his previous life." When the two left, Yang Heng threw himself on the edge of the oil drum, and took off some of the wooden wedges that were sealed, then pried the lid open, looked at the things in front of him, and slowly entered the fantasy.

He saw that the cars were running on the road, on the river, on the sea, small speedboats flying on the water, and all kinds of chemical materials, asphalt roads, all of which were petroleum products.

"Haha, haha, haha, haha." Yang Hengda laughed, if he found this thing a few years in advance, he would definitely not be so happy, but now, those Taoist leaders under him have studied the subject of chemistry to a prototype, processing oil, it will not be difficult, and even, he will not let them use the simplest distillation method to process these oils, that method is always very dangerous, but now, some machinery manufacturing is already very advanced, and then the processing of this oil will reduce the danger a lot.

"Big brother, what's so happy about it, you laugh so loudly." "Haha, Yuzhang, good thing, this is really a good thing, in the future, the car, we will build it very beautiful, and it will be a real car." Yang Heng and Yu Zhang, although they are officially married, the title between the two has not changed, why, all along, the title is used to it, so it is difficult to change. (To be continued......)