ASTM Loj H beam nrog qib A992, A572 / 572m Gr.50
ASTM/JIS/GB/EN standard H beam, UB, UC, PFC beam on sale
Qhov siab me me conduit yog txheej txheem txheej txheem nyob rau hauv cov txheej txheem ntawm qhov excavation.
304 thiab 316 steel kaum thiab channel
Sib npaug thiab Tsis sib xws lub kaum sab xis steel thiab lub kaum sab xis nrog 3-5% thickness kam rau ua.
Tso Koj Cov Lus