童車(che)專(zhuan)用管(guan)(guan)現場批發零(ling)售焊(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)，又稱焊(han)(han)(han)管(guan)(guan)，是(shi)由(you)鋼(gang)板(ban)或帶鋼(gang)經卷邊成(cheng)(cheng)型后(hou)制(zhi)成(cheng)(cheng)的鋼(gang)管(guan)(guan)，固(gu)定(ding)長度為6米。焊(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)生產(chan)工藝簡(jian)單，生產(chan)效率高，品種(zhong)規(gui)格(ge)多(duo)(duo)，設備投資(zi)少，但綜合強度低(di)于無(wu)縫鋼(gang)管(guan)(guan)。普(pu)通焊(han)(han)(han)管(guan)(guan)：一般(ban)焊(han)(han)(han)管(guan)(guan)用于輸送(song)低(di)壓(ya)流體。它由(you)q195a、q215a和Q235a鋼(gang)制(zhi)成(cheng)(cheng)。它也(ye)可以由(you)其(qi)他容易焊(han)(han)(han)接(jie)的低(di)碳鋼(gang)制(zhi)成(cheng)(cheng)。鋼(gang)管(guan)(guan)應(ying)進行(xing)水壓(ya)、彎(wan)曲、壓(ya)扁等試驗。表(biao)面(mian)質(zhi)量有(you)一定(ding)的要求。一般(ban)交貨長度為4-10米，通常需要固(gu)定(ding)長度(或多(duo)(duo)個長度)交貨。焊(han)(han)(han)管(guan)(guan)規(gui)格(ge)用公稱直徑(jing)(jing)(mm或英寸)表(biao)示。公稱直徑(jing)(jing)與實際直徑(jing)(jing)不同(tong)。根據規(gui)定(ding)的壁(bi)厚(hou)，焊(han)(han)(han)管(guan)(guan)有(you)普(pu)通鋼(gang)管(guan)(guan)和加(jia)厚(hou)鋼(gang)管(guan)(guan)兩種(zhong)，按(an)管(guan)(guan)端(duan)形式分(fen)為有(you)螺(luo)紋(wen)和無(wu)螺(luo)紋(wen)兩種(zhong)。
鍍鋅(xin)(xin)鋼(gang)管：為(wei)提高(gao)鋼(gang)管的耐腐蝕性，一般(ban)鋼(gang)管(黑(hei)管)采用(yong)鍍鋅(xin)(xin)。鍍鋅(xin)(xin)鋼(gang)管分(fen)為(wei)熱浸鍍鋅(xin)(xin)和電(dian)鍍鋅(xin)(xin)。熱鍍鋅(xin)(xin)層(ceng)厚(hou)，鍍鋅(xin)(xin)成本(ben)低。光亮焊管高(gao)頻焊管自行車(che)管嬰(ying)兒(er)車(che)專用(yong)管現貨批發零(ling)售
