non-standard and custom-made Many non-standard fasteners can be produced by modifying an existing fastener, keeping costs and lead times to a minimum. If you need a standard product with, for example, a non-standard head diameter, thread length or pitch, we can supply it for you.
Special fasteners are a bolt used under industrial circumstances to hold pieces heavy weight industrial components together under extreme pressure. These Screws are made out of materials highly resistant to corrosion. This is necessary because of the type of equipment they are expected to hold together.
Special Screw, Custom screw, Non-standard screw FinExpress Precision Manufacturing(Dongguan) Co., Ltd , https://www.finexpresshardware.com
For more content, please follow this site
There are many test items for color fastness. According to the different uses of customers and fabrics, general fabrics should be tested for light fastness and soaping fastness, and only fabrics for swimwear should be tested for seawater fastness. The test standard can be carried out according to the customer's standards. After the test is completed, the gray sample card is used to assess the degree of discoloration of the sample and the degree of staining of the lining fabric.
The gray sample card provides a lot of color differences. These color differences simulate the difference between the leg color and the stain before and after the fabric. By comparing the difference between the sample before and after the test and the standard color difference provided by the gray sample card, the sample can be obtained. Color fastness grade. The specific inspection method for evaluating discoloration can refer to the national standard GB250-1995 (equivalent to the international standard ISO 105/A02-1993). The specific inspection method for evaluating the stain can refer to the national standard GB251-1995 (equivalent to the international standard ISO 105/A02- 1993).
August 31, 2021