Estándar americano forjado

Production execution standard: USA Federal Specification RR-C-271F Material: Forged from high-quality alloy steel. Product testing: The manufacturing inspection tensile force is twice the rated load; each batch of products is sampled for breaking test. Safety factor: 6 times the rated working load. Note: Due to the wide range of specifications and sizes, the specifications and sizes available for online sales are limited. If the required size and tonnage are not listed in the online display, please feel free to consult our customer service staff individually!