ʻO ka Yuantai Derun's square hollow section, rectangular hollow section, circular hollow section, pre galvanized steel pipe, hot-dip galvanized steel pipe a me nā huahana ʻē aʻe e lawe ana i ka EN10210, EN10219, ASTM A53, ASTM A500, ASTM A501, ASTM A106, JSIS1387 STKR400,JIS STKR490, GB/T700-2006,GB/T6728-2002; ʻO ka ʻaoʻao ʻelua arc spiral paipu kila, a me ka paipu kila ʻole e hoʻokō me GB / T9711-2011, API Spec 5L a me API 5CT maʻamau o ka ʻoihana ʻaila ʻo Kina.

Hoʻopili ka hui ʻo Yuantai i ka mea nui i ka maikaʻi o nā huahana, hoʻopukapuka nui i ka hoʻokomo ʻana i nā mea hana kiʻekiʻe a me nā ʻoihana, a hele i waho e hoʻokō i nā pono o nā mea kūʻai aku ma ka home a ma waho.

Hiki ke hoʻokaʻawale ʻia nā ʻike hoʻāʻo ʻana i ka ʻāpana Steel hollow i: haku mele, ikaika hua, ikaika tensile, waiwai hopena, etc.

I ka manawa like, hiki i ka hui ke hoʻokō i ka ʻike kīnā ma ka laina a me ka annealing a me nā kaʻina hana wela e like me nā pono o ka mea kūʻai aku.