Hei whakarato ratonga pai ake, ratonga ngaio ake hoki ki ngā kaihoko, i te ata o te 17 o Hūrae 2019, i ako ngā kaimahi katoa o Youfa International i ngā paerewa o te ao mō ngā paipa maitai tapawhā me te tapawhā hāngai matao.
I te tīmatanga, nā te kaiwhakahaere matua a Li Shuhuan i whakauru poto a Youfa i te tau 2000 mai i tētahi wheketere iti, ā, i nāianei kua eke te kaha whakaputa ki te 16 miriona tana, me te nui o te kaweake ki te 25 mano tana.
Ā, i tēnei wā, hei kaiako, ka whakaako te kaiwhakahaere matua a Ma o te kamupene o Hong Kong i tētahi akoranga mō ngā paipa rino tapawhā me te tapawhā hāngai matao.
I tēnei wā, ko ngā paerewa o ngā paipa maitai tapawhā hanganga matao, tapawhā hāngai ko GB/T 6728-2017, JIS G3466-2015, ASTM A500/A500M-2018 me EN10219-1&2-2006.
Ko te ātete whānui a En10219-2 ko -/+0.6%, ko te ātete matotoru kāore e neke atu i te -/+10%, ko te tapawhā o ngā taha he 90⁰± 1⁰, ā, ko te pūtoro o ngā kokonga kāore e neke atu i te toru ngā wā o te matotoru pakitara kua tohua. I roto i te paerewa EN10219, e whakatau ana hoki i te takahuri me te tika.
Whai muri i tēnei rangahau, ka whakaratohia e ngā kaimahi o Youfa International Trade he ratonga ngaio me ngā whakaaro ki ngā kiritaki.
Te wā tuku: Hōngongoi-19-2019