书犐犆犛２１．０６０．１０犆犆犛犑１３中华人民共和国国家标准犌犅／犜８—２０２１代替犌犅／犜８—１９８８方头螺栓犆级犛狇狌犪狉犲犺...
ANAMERICANNATIONALSTANDARDASMEB18.2.1-2012Square,Hex,HeavyHex,andAskewHeadBoltsandHex,HeavyHex,HexFlange,LobedHead,andLagScrews(In...
QC T 379-2013 方头锥形螺塞.pdf
