Donald would certainly not agree to Wang Bin''s request.

    After all, the price of 15 energy coins per ton is already very high in his opinion. Even if the price of 15 energy coins per ton is 50 tons, it is 750 energy coins!

    If you use these energy coins to buy other materials in the mall, especially the cheapest mineral resources, you can even buy tens of millions of tons.

    So he said, "no! No! No! Mr. shopkeeper, you can''t do this. We have agreed on the price before. If you increase the price, it will violate your previous commitment, and it will also affect the credit of your store."

    "Mr. Donald, the price I offered before is the price under normal circumstances. For example, the 50 tons of special glass you want this time. If you don''t ask for advance, you want Tiangong technology to buy this glass at the price of 15 energy coins per ton.

    However, if you ask for advance delivery, it is an abnormal delivery method. We Tiangong technology must work overtime to produce. At the same time, we have to push off some orders in reality. Naturally, we have to make up for the losses of Tiangong technology, "Wang Bin said.

    Then Wang Bin and Donald entered the bargaining mode. According to Wang Bin''s idea, if the delivery is to be made in advance, the price per ton should be increased by at least 3 energy coins, that is, 18 energy coins per ton.

    But Donald was unwilling to pay so much. He asked Wang Bin''s Tiangong technology to complete the order within 20 days. At the same time, in terms of price, it can only increase 0.5 energy coins at most, that is, 15.5 energy coins per ton.

    Until two hours later, Wang Bin finally reached an agreement with him, that is, 50 tons of special glass will be completed within 20 days, and the price is 16 energy coins per ton. However, there is another condition, that is, he will give Wang Bin the data tested on this special glass in his world, At the same time, even if they use this special glass in the future, the actual combat data after transformation will also be given to Wang Bin.

    In fact, Wang Bin doesn''t care much about whether the price is increased, but he must understand the equipment data after the transformation of this glass, especially the actual combat data, including the use of screw rods made of glass after Xu Zhenming purchased their Tiangong technology.

    After discussing the price, Donald gave Wang Bin the data of the glass they needed this time.

    The glass Donald needs this time is flat glass. After all, if it is other types of glass, then it is not the price.

    At the same time, the thickness of the glass they need is the same as that of the last time. Basically, it is more than 5mm, and most of them are 5-8mm. However, there are not many glasses above 8mm, accounting for only 10% of them, while those below 5mm are even less, only about 1%.

    For this ratio, Wang Bin doesn''t know what they do, and doesn''t ask. After all, Donald will give Wang Bin all the data about his use of this glass in their world.

    As for whether the data given by Donald is true or false, Wang Bin is not worried. After all, this is a contract signed under the witness of the mall. As long as Donald is not stupid, he will never dare to cheat.

    When the order contract was signed, Donald first took away from him the five tons of glass produced by Tiangong technology in recent days.

    "Mr. Donald, I wonder if you need some other products besides these special glasses?" Wang Bin said to Donald with a smile when Donald took away the five tons of glass, stood up and was ready to go.

    "Shopkeeper! I think your shop only sells special glass! Do you have other products? If there are other products, I don''t mind looking at them!" Donald said.

    Although there are many stores selling various products in this area of the whole technology mall, many of these stores, or the technology level of the owner''s world, are not very good. Even the technology level of most of the things sold by the stores can not reach the world level.

    Of course, it''s not a world without high-tech level, but these stores basically don''t sell basic materials. Even if they do, there are only one or two kinds, and the price is even higher.

    Or sell some products that are useless or difficult for them to understand, such as chips that are very difficult for him to understand, and even those that don''t know their purpose.

    The most important thing is that in his opinion, the price of things the size of a matchbox is higher than that of many large commodities, which makes him too difficult to accept. What makes him more difficult to accept is that people still buy such products, and many people buy them.

    The shop called Tiangong technology is much better. From the glass in the shop, we can see that the technology level of the owner''s world is absolutely extraordinary, which is not comparable to his world and country.

    Take these glasses for example. After he bought them last time, he returned to his world to test them and even reverse deduce them.

    As a result, even the raw materials used in these glasses cannot be fully recognized in their world, let alone imitated.

    Although the price of the glass sold in this shop is not cheap, it is better than other shops, and these glasses have many uses.

    Now that the store has other new products, he naturally wants to see whether these materials or products play a role in his world and country. If so, he doesn''t mind buying some.

    While Donald was thinking about this, he followed Wang Bin to a container. Then the owner of the store took out a glass object similar to the screw from the glass container and said, "Mr. Donald, that is the new product launched by Tiantong technology, high-precision ball screw."

    "Ball screw?" Donald was obviously surprised when he saw these ball screws made of glass. Donald was no stranger to ball screw in his original world as a scientific and technical personnel. After all, ball screw had appeared in his world or era, although not many, but not strange.

    To his surprise, these ball screws were made of materials.

    "Sir! Can these glasses be made into ball screws?" Donald asked.

    "Yes! These special glasses can be made into many things, including ball screw," Wang Bin replied.

    As Wang Bin spoke, Donald began to carefully observe these ball screws and also looked at the data of these screws made of glass in front of these screws.

    After Donald began to observe these screw rods, Wang Bin stopped talking and waited quietly.

    After a long time, Donald looked up and sighed to Wang Bin, "shopkeeper, these screw rods are really great. They are simply handicrafts!"