Ingano ya ASTM H beam ifite amanota A992, A572 / 572m Gr.50
ASTM / JIS / GB / EN bisanzwe H beam, UB, UC, urumuri rwa PFC kugurishwa
Umuyoboro muto wateye imbere nuburyo bukoreshwa muburyo bwo gucukura tunnel.
304 na 316 ibyuma byinguni n'umuyoboro
Ingero zingana kandi zingana zingana nicyuma gifatika hamwe na 3-5% kwihanganira.
Reka ubutumwa bwawe