Kuti tipe vatengi zviri nani uye basa rehunyanzvi, mangwanani emusi wa17 Chikunguru 2019, Youfa International vashandi vese vakadzidza zviyero zvepasi rose zvekutonhora kwakaumbwa sikweya uye rectangular simbi pombi.
Pakutanga, maneja mukuru Li Shuhuan akasuma Youfa muchidimbu kutanga muna 2000 kubva kufekitari diki uye parizvino asvika 16 miriyoni ekugadzira uye ekunze matani zviuru makumi maviri neshanu.
Uye semudzidzisi panguva ino general maneja Ma wekambani yeHong Kong akapa chidzidzo pane inotonhora yakagadzirwa sikweya uye rectangular simbi pombi.
Parizvino, kutonhora kuumbwa kwechimiro mativi uye rectangular simbi pombi zviyero zviri GB/T 6728-2017, JIS G3466-2015, ASTM A500/A500M-2018 uye EN10219-1&2-2006.
En10219-2 yakati dhayamita kushivirira ndeye -/+ 0.6%, ukobvu kushivirira hakuna kupfuura -/+ 10%, squareness yemativi i90⁰± 1⁰, uye radius yemakona haipfuure katatu kukora kwemadziro akatsanangurwa.Mune yakajairwa EN10219, inotaurawo twist uye kutwasanuka.
Mushure mechidzidzo ichi, Youfa International Trade tsvimbo ichapa vatengi masevhisi ehunyanzvi uye mazano.
Nguva yekutumira: Jul-19-2019