Twishimire ko twe Hangzhou FAMOUS Steel Engineering Co., Ltd twatsinze igenzura rya sisitemu yuburayi Standard Standard Structural Steel Fabrication Impamyabumenyi Impamyabumenyi EN1090-2 na ISO3834-2.murakaza neza Ubwongereza Bwongereza Uburayi bujyanye nabakiriya ku isoko kugirango batubaze imishinga yibyuma byimishinga.