ʻO ka ʻāpana hakahaka huinahā o Yuantai Derun, ka ʻāpana hakahaka huinahā, ka ʻāpana hakahaka poepoe, ka paipu kila galvanized mua, ka paipu kila galvanized hoʻoluʻu wela a me nā huahana ʻē aʻe e hoʻokō ana i nā kūlana EN10210, EN10219, ASTM A53, ASTM A500, ASTM A501, ASTM A106, BS1387, JIS STKR400, JIS STKR490, GB/T700-2006, GB/T6728-2002; ʻO ka paipu kila wili arc submerged ʻelua ʻaoʻao, a me ka paipu kila humuhumu ʻole e kūlike me nā kūlana GB / T9711-2011, API Spec 5L a me API 5CT o ka ʻoihana petroleum Kina.

Hoʻopili ka ʻoihana Yuantai i kahi mea nui i ka maikaʻi o nā huahana, hoʻopukapuka nui i ka hoʻolauna ʻana i nā lako holomua a me nā poʻe loea, a hele i waho e hoʻokō i nā pono o nā mea kūʻai aku ma ka home a ma waho. I ka makahiki 2023, ua hala ka hale hana hoʻokolohua hui Yuantai Derun i ka palapala hōʻoia CNAS.

Hiki ke hoʻokaʻawale ʻia nā ʻike hoʻāʻo ʻāpana kila i loko o: ka haku mele kemika, ka ikaika hua, ka ikaika tensile, ka waiwai hopena, a pēlā aku

I ka manawa like, hiki i ka ʻoihana ke hana i ka ʻike ʻana i nā kīnā pūnaewele a me ka annealing a me nā kaʻina hana wela ʻē aʻe e like me nā pono o ka mea kūʻai aku.