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當承受地(di)震作用(yong)時,應(ying)采(cai)用(yong)雙螺(luo)母固定,或采(cai)用(yong)其它有效防止松(song)動的措施,但地(di)腳螺(luo)栓...
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單頭(tou)(tou)螺栓(shuan)(shuan)(shuan)與雙頭(tou)(tou)螺栓(shuan)(shuan)(shuan)區別,35crmoa雙頭(tou)(tou)螺栓(shuan)(shuan)(shuan),國標35CrMoa雙頭(tou)(tou)螺栓(shuan)(shuan)(shuan),...
u型螺栓(shuan)規格型號表,gb4321標(biao)準u型螺栓(shuan),8.8級u型螺栓(shuan)生產(chan)公司,懸挑...