1. Leveling milling: Ma hope o ke kila pepa leveling machine anvil original curved, then through the lihi milling machine for mill steel two-sided margin, i mea e hoʻokō ai i nā pono o ka pā laula, plate lihi parallelism and groove shape.
2. ʻOki ʻia: ʻoki ʻia ma ka laina ma ka ʻaoʻao o waho o ka pā i loko o kahi paipu spiral.
3. ʻO ka ultrasonic flaw detection: list of Q235B high alloy pipe weld and weld ma nā ʻaoʻao ʻelua o ka mea kumu 100% nānā.
4. Nānā maka: nā mākau ʻoihana o nā limahana i kekahi o nā paipu hao kiʻekiʻe Q235B mau palena kumu no ka nānā ʻana.
5. Oiled marking: Q235B kiʻekiʻe alloy paipu ma hope o ka hele ana ua uhi ia me ka aila e pale aku corrosion, a ma muli o ka mea hoʻohana pono e kaha.