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EN 14399 bolt for wind turbines HR HV systemEN14399Product：High-strength structural bolting assemblies for preloadingThis st......
2021-12-06
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ISO 4032 hex nut grade8 10 CEProduct：hexagon nutsMechanical properties according to ISO898-2 8 &nb......
2021-12-01
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EN15048 HEX HEAD BOLT CE CERTIFICATEEN 15048-1(全套螺栓组件)PRODUCTS：Non-preloaded structural bolting assembliesBolts grad......
2021-11-28
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ISO 4014 hexagon head screws, supplier from ChinaProduct：hexagon head screws / half threadSpecification：M20-M72Property Class:&nb......
2021-11-27
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The key technology of anti-impact prestressed support for coal mine roadway won the 2020 National Science and Technology AwardOn November 3, the Party Central Committee and the State Council solemnly held t......
2021-11-20
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Hexagon head screw ISO 4017, CE, DOP, full threadProduct：hexagon head screws / full thread Specification：M20-M72Property Cla......
2021-11-14
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Wind power big size hex bolts CE EN 14399-4 M48*210 10.9 HV bolt tornilloWe are CE certified manufacturer producing high strength bolt assembly. EN......
2021-10-10
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Class 12.9 bolts StrengthAccording to ISO 898-1, Mechanical pr physical property for class 12.9 is as bel......
2021-09-29
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Why do bolts have 4.8/8.8/10.9/12.9 grades?Take the 10.9 level as an example: 10 represents the nominal tensile strength (1......
2021-09-29
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Production procedures for high-strength heat-treated hexagon head boltProduction process for heat-treated hex head bolt &nb......
2021-08-08
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