Carries out the standard

GB1591  , GB/T1591 ,   JIS G 3106  , JIS G 3101  , GB/T16270, JIS G 3106,

JIS G 3101, DIN17100, DIN17102, ASTM, EN10025, EN10113, BS4360

ISO4950-2, ISO4950-3, ISO630 EN10025-6

Main use

Makes mechanical device and other structural elements and so on drilling machine, power shovel, electricity drive wheel counter- mine trolley, mineral product automobile, excavator, car loader, bulldozer, each kind of hoist crane, coal mine hydraulic pressure support which the workshop, thegeneral construction and each kind of project machinery, like the mine and each kind of projectconstruction uses.