This standard specifies the contents of ordering, grade presentation method, size, shape, weight, technical requirements, test methods, inspection rules, packag

This Standard specifies the test method for determining the change of appearance and physical properties of vulcanized rubber after it is aged in salt mist envi

This Standard specifies the module and diameter of cylindrical worm. This Standard applies to worms of cylindrical worm gears.

This Standard specifies personnel requirements, facilities and equipment, testing procedures, testing steps and sample management procedures for label conforman

This Standard specifies the types and basic parameters of straight-sided highspeed mechanical power presses of which the nominal force range is 250kN~6300kN. Th