Heerarka ugu dhimirka ee ugu sareeya ee birta ah ee ifiley ee birta ah waa heerarka Ingiriiska iyo Jabaan:
1. Heerka Ingiriiska ee Ingiriiska waxaa loola jeedaa tuubooyinka birta (tuubooyinka dharka lagu dhejiyo ama tuubooyin aan kala go 'lahayn) oo leh dhexroor ka baxsan 48.3mm
Tuubada shelf waxay leedahay laba cabbir:
Q235 / Q345, 48.3 * 3.2mm * 6000mm
Q235 / Q345 48.3 * 4.0mm * 6000mm
Sababo la xiriira adeegsiga guud ee heerarka Ingiriiska ee dunida, labadan tuubooyinkan tuubbooyinka ah ayaa si ballaaran loogu isticmaalaa wadamada adduunka oo dhan. Marka loo eego tirada uruurinta la ogolaan karo, dhumucda kale ee tuubbada ah ayaa laga soocay cabbirrada kor ku xusan: 2.75mm, 3.7mm, 3.75mm, 3.8mm.
1.5 Burburinta caadiga ah ee Ingiriiska ee caadiga ah
2. Heerka Jabaanka ee Japan waxaa loola jeedaa tuubbo bir ah oo leh dhexroor ka baxsan 48.6mm
Sida laga soo xigtay JIS G3444-2006 Standard, cabirka birta spk400 / skk500 / skk500 48 * 2.4mm * 6000mm *1-22.7mm)
Suuxdinta tuubooyinka birta ah ayaa leh shuruudo ku saabsan dhumucda tuubooyinka birta. Sababo nabadgelyo awgood, waa inaad fiiro gaar ah u yeelatid xulashada alaabada ku habboon oo aad u digtoonaato arrimaha badbaadada.
Waqtiga Post: Novo-04-2021