Me kēia ʻōlelo hoʻohihi i ka noʻonoʻo, ua lilo mākou i waena o nā mea hana ʻenehana hou loa, kūpono i ke kumukūʻai, a hoʻokūkū hoʻi no ka Hale Hana i hoʻolako ʻia ʻo Ms Erw Welded Black Steel Pipe/tube.Paipu kila Erw kalapona ʻeleʻeleʻO ka brand Youfa ka mea hana nui loa no ka paipu kila kalapona, Ke neʻe nei mākou i mua, mālama mākou i ka maka ma kā mākou huahana e hoʻonui mau ana a hoʻomaikaʻi i kā mākou lawelawe loea.
Me kēia ʻōlelo hoʻohihi i ka noʻonoʻo, ua lilo mākou i waena o nā mea hana ʻenehana hou loa, kūpono i ke kumukūʻai, a hoʻokūkū hoʻi noPaipu kila Erw kalapona ʻeleʻele, Paipu kila Erw, paipu kila ʻeleʻele i hoʻopaʻa ʻia, Ke lawelawe mau nei mākou i kā mākou mea kūʻai aku kūloko a me ka honua e ulu nei. ʻO kā mākou pahuhopu ke lilo i alakaʻi honua ma kēia ʻoihana a me kēia manaʻo; he mea hauʻoli nui iā mākou ka lawelawe ʻana a me ka lawe ʻana mai i nā helu ʻoluʻolu kiʻekiʻe loa ma waena o ka mākeke e ulu nei.
| Huahana | Paipu kila mea hoʻoheheʻe ahi |
| Mea Hana | Ke kila kalapona |
| Papa | Q195 = S195 / A53 Papa A Q235 = S235 / A53 Papa B / A500 Papa A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Papa B Papa C |
| Kūlana Maʻamau | GB/T3091, GB/T13793API 5L, ASTM A53, A500, A36, ASTM A795 |
| Nā kikoʻī | ASTM A795 sch10 sch30 sch40 |
| ʻIli | Pena ʻia i ka ʻeleʻele a i ʻole ka ʻulaʻula |
| Pau | Nā wēlau maʻemaʻe |
| Nā wēlau ʻauwaha |



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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