"Ma muli o ka mākeke kūloko a hoʻonui i ka ʻoihana ma waho" ʻo kā mākou hoʻolālā hoʻomohala no ke kumukūʻai kūʻai nui ʻo Youfa Mild Steel Black Carbon Round Steel Pipe Per Meter, Ke ʻimi nei mākou i mua e hoʻomohala i nā pilina hana pū me ʻoe. E hoʻomanaʻo e hoʻokaʻaʻike mai iā mākou no nā kikoʻī hou aku.
"Ma muli o ka mākeke kūloko a hoʻonui i ka ʻoihana ma waho" ʻo kā mākou hoʻolālā hoʻomohala noPaipu kila kalapona ʻeleʻele, Paipu kila kalapona no kēlā me kēia mika, Paipu poepoe kila akahai, Me ka ʻoi aku o 9 mau makahiki o ka ʻike a me kahi hui akamai, ua hoʻokuʻu aku mākou i kā mākou mau mea i nā ʻāina a me nā wahi he nui a puni ka honua. Hoʻokipa mākou i nā mea kūʻai aku, nā hui ʻoihana a me nā hoaaloha mai nā wahi a pau o ka honua e hoʻokaʻaʻike mai iā mākou a ʻimi i ka laulima no nā pono like.
| Huahana | Paipu kila Welded i pena ʻia ʻeleʻele ASTM A53 |
| Mea Hana | Ke kila kalapona |
| Papa | Q195 = S195 / A53 Papa A Q235 = S235 / A53 Papa B / A500 Papa AQ345 = S355JR / A500 Papa B Papa C |
| Kūlana Maʻamau | GB/T3091, GB/T13793API 5L/ASTM A53, A500, A36, ASTM A795 |
| Nā kikoʻī | ASTM A53 A500 sch10 – sch80 |
| ʻIli | ʻEleʻele i pena ʻia |
| Pau | Nā wēlau maʻemaʻe |
| Nā wēlau i hoʻopili ʻia |


Ka Mana Kūlana Koʻikoʻi:
1) I ka wā a ma hope o ka hana ʻana, 4 mau limahana QC me ka ʻoi aku o 5 mau makahiki o ka ʻike e nānā i nā huahana ma kahi random.
2) Keʻena hoʻokolohua i hōʻoia ʻia e ka ʻāina me nā palapala hōʻoia CNAS
3) Nānā ʻae ʻia mai ka ʻaoʻao ʻekolu i koho ʻia/uku ʻia e ka mea kūʻai, e like me SGS, BV.
4) Ua ʻāpono ʻia e Malekia, ʻInidonesia, Singapore, Pilipine, ʻAukekulelia, Peru a me UK. Loaʻa iā mākou nā palapala hōʻoia UL /FM, ISO9001/18001, FPC.
aʻo hou aʻe e pili ana i nā palapala hōʻoia
Hoʻopili a me ka lawe ʻana:
Nā kikoʻī hoʻopili: i loko o nā puʻupuʻu kai hexagonal i hoʻopaʻa ʻia e nā ʻāpana kila, Me ʻelua mau maʻa nylon no kēlā me kēia puʻupuʻu.
Nā kikoʻī hoʻouna: Ma muli o ka QTY, ʻo ka maʻamau hoʻokahi mahina.

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