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ISO3834 international welding system certification is aimed at the special process of welding, requiring enterprises to combine design, process, production, and quality assurance to form a mature sys
EN15085 certification is a welding certification system mark for rail vehicles and vehicle components, which is widely used in the rail transit industry. The EU standard EN 15085, full name: Railway
API 607 and API 6FA are fire resistance tests for valves 6D and 6A. Generally, 6D valves that can only rotate 90 ° require API 607, while others require API 6FA. API stands for American Petroleum In
For various types of valve products, conventional water pressure and air pressure tests cannot determine, and more scientific methods and precision instruments are needed to detect small external lea
The leakage detection of API 622 valves mainly detects invisible trace leaks at the valve packing and valve body gasket. The gasket at the valve body is a static seal, which is prone to the standard
The API 624 standard specifies the acceptance criteria (100ppmv) for low leakage type testing of open stem and lift rotary stem valves with graphite packing. Previously, it was tested according to AP
Key points of EN1090 certification: EN1090 belongs to the System2+category under the CPR regulations for building materials, mainly including factory production control, initial type testing, continu
The Measuring Instruments Directive (MID) 2014/32/EC is a regulation used by the European Union to supervise and manage measuring instruments. Its directive specifies new method standards, conformity
RoHS is a mandatory standard established by EU legislation, and its full name is the Restriction of Hazardous Substances directive. This standard has been officially implemented since July 1, 2006, m
ISO9001 certification is used to demonstrate an organizations ability to provide products that meet customer requirements and applicable regulatory requirements, with the aim of enhancing customer sa
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