1. Cov txheej txheem no suav nrog txias welded seamless carbon steel round tubes, square tubes, rectangular tubes los yog tshwj xeeb zoo li structural raj rau vuam, riveting los yog bolted lug ntawm cov choj thiab cov vaj tse, thiab cov structural raj.
2. Cov yeeb nkab no yog cov yeeb nkab welded thiab seamless yeeb nkab nrog phab ntsa thickness ntawm 88 ntiv tes (2235 hli) thiab hauv qab thiab phab ntsa thickness ntawm 0.875 ntiv tes (22 hli) thiab hauv qab rau sab nraud siv. Qib D xav tau kev kho cua sov.
Cov lus ceeb toom 1. Cov khoom tsim los rau tus qauv no yuav tsis haum rau kev siv hauv cov khoom siv welded uas cov ntsiab lus dynamically loaded yuav yog ib qho tseem ceeb, xws li kub tsis tshua muaj siab toughness, thiab lwm yam.
3. Tus nqi qauv ntawm cov metric yooj yim units thiab imperial units yuav tsum tau saib nyias raws li cov qauv. Metric units hauv kab lus no tau qhia nyob rau hauv kab lus. Cov txheej txheem tus nqi hauv txhua qhov system tsis tas yuav zoo ib yam; yog li txhua qhov system yuav tsum tau siv nws tus kheej ntawm lwm cov txheej txheem. Kev sib xyaw ntawm ob lub tshuab yuav ua rau cov qauv tsis sib xws. Imperial units yuav tsum siv rau hauv cov lus qhia tshwj tsis yog raws li tau teev tseg hauv cov khoom "M".
4. Qhov kev qhia tshwj xeeb no muaj cov ntawv sau thiab cov ntawv hauv qab uas siv los muab cov ntaub ntawv piv txwv. Tsis muaj qhov yuav tsum tau ua rau cov lus hais thiab cov lus hauv qab no (tsis suav nrog hauv cov lus thiab cov duab).
