This standard adopts ASTM B253-1983 for reference. This standard specifies a surface preparation method that should generally be c

This standard specifies the classification grades, technical requirements, test methods and inspection rules of forsterite sand fo

This standard specifies the polarization, grades, technical requirements, test methods and inspection rules of chromite sand for c

This standard specifies the terminology, calculation basis and calculation method of casting material consumption process quota. T

This standard specifies the type of sound pressure level measurement method, the location of sound pressure level measurement, the

This standard specifies the performance test methods for plastic film and paper pressure-sensitive adhesive signs. This standard i

This standard specifies the technical requirements, test methods, inspection rules, packaging, transportation and storage of plast

This standard specifies the classification rules for steel forged modules according to different stress conditions and the quality