GB国标 平锥头半空心铆钉
(代替 GB1013-76)
Cone head semi-tubler rivets
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GB国标 栓接结构用大六角头螺栓 螺纹长度按GB/T 3106 C级 8.8和10.9级
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Hexagon bolts for high-strength structural bolting with large width across flats(thread lengths according to GB/T 3106)-roduct grade C-roerty classes 8.8 and 10.9
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GB国标 栓接结构用大六角头螺母 B级 8和10级
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Hexagon nuts for high-strength structural bliting with large width across flats-roduct grade B-roerty classes 8 and 10
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