Dab tsi yog qhov taper ntawm lub teeb ncej
Cov txheej txheem kev lag luam rau cov teeb tseem ceeb ntawm cov cua-hnub ci ua ke rau txoj kev teeb
1. Q235 steel raj nrog phab ntsa tuab ntawm 4mm thiab qhov siab ntawm 10m;
2, ywj pheej teeb lub cev, taper 11; Lub taper kev ua yuam kev yuav tsum tsis ntau tshaj li ntawm 1/1000, qhov ntev tag nrho qhov yuam kev yuav tsum tsis txhob loj dua 5MM, thiab qhov kev ua tiav ntawm kev ua yuam kev yuav tsum tsis pub ntau tshaj 1MM;
3. Cov taub loj: 80MM, qis taub: 212MM;
4. Cua tsis kam: 60m / s;
5. Lub teeb ncej tau ua los ntawm cov qib high-quality low-carbon kub-dov hlau phaj los ntawm ntshav txiav, khoov thiab tsis siv neeg vuam. Qhov vuam seam yoog raws GB / T3323 - 1987 qib iii txheem, nrog qhov tob melting ntau tshaj li 85%.
6. Lub teeb ncej yog kho nrog kev kho mob sab hauv thiab kub kub dip galvanized anticorrosive. Zinc txheej thickness ntau dua 85UM, uas ua rau zbj3601-89 tus qauv.
7. Sab saum npoo ntawm lub teeb ncej txau nrog yas, siv cov khoom siv txau pov tseg kom ntau lawm nrog kab ntawv ntev li 60M. Xim yog xaiv raws li cov qhua tuaj noj mov.
