The total cost of replacing a carbon electrode with a silicon wafer per 100 degrees of current is 1 yuan. First, the tolerance value is determined by the process. The higher the current, the higher the cost; second, the wafer accuracy level is determined. The better the process, the better the wafer accuracy. the higher the grade;

For laxatives, the specifications and quality requirements of each product are different. Some products have CAD drawings, but only CAD drawings are far from enough. Large-scale equipment (to detect whether there is damage) is required for laboratory testing. Earn money back. I encountered it a few years ago. When one of my customers was working in this laboratory, something broke, and then they said that it needed to be replaced for some reason. I have the customer's own company and the kind of self-testing. The things in the laboratory are all provided by the supplier. If I go to the supplier, I can change it if I say so? Suppliers are not that busy.

Then the customer said no to change, what should I say, the result is that the customer disappeared directly, and that thing is still there, waiting for the company to deal with it. Because the laboratory is constantly tested, there is a replacement cycle if there is a problem. The middleman like the supplier naturally has a long replacement cycle for the customer. If the quality cannot be guaranteed, it cannot be verified.

Just a few words, personal opinion, it is inconvenient to disclose commercial secrets. For the seller's energy-saving and environmental protection waste treatment products, if the current is large and the resistance is small, the visual inspection will not be reimbursed if the resistance value is small, and the direct current detection method will also make people anxious. Due to the DC voltage pressure of the detection equipment, a current of two hundred degrees should not be consistent with a current of more than three hundred degrees. The external resistance is small because the current is so large that the current passing through it is 1j. If the resistance value is small, the detection current will be too large, and then the resistance will become larger.