镀锌钢钢白铁条聚氨酯泡沫生成材料隔热聚氨酯泡沫生成保冷管由保研媒质的无缝管及聚氨酯泡沫生成材料硬塑泡沫生成朔料隔热保冷层、镀锌钢钢白铁条外护管慎密联系而成。

镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)及(ji)(ji)不(bu)锈(xiu)钢(gang)材(cai)镀(du)(du)(du)(du)(du)锌焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)扣(kou)件： 分离(li)认(ren)(ren)(ren)同(tong)(tong)(tong)20#无接(jie)缝(feng)拼接(jie)镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)和Q235B单(dan)双面(mian)电弧焊(han)(han)(han)(han)转(zhuan)鼓镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)及(ji)(ji)直(zhi)缝(feng)焊(han)(han)(han)(han)镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、304不(bu)锈(xiu)镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)相貌(mao)颠末全面(mian)发展(zhan)老前辈的抛丸防锈(xiu)处理(li)加工(gong)制(zhi)(zhi)(zhi)作(zuo)加工(gong)制(zhi)(zhi)(zhi)作(zuo)工(gong)艺 外理(li)后，镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)防锈(xiu)处理(li)等(🎃deng)级(ji)GB8923-1988标(biao)准(zhun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)规(gui)(gui)则(ze)中(zhong)的Sa2级(ji)，相貌(mao)粗拙度(du)相当(dang)于GB6060.5-88标(biao)准(zhun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)规(g🦂ui)(gui)则(ze)中(zhong)R=12.52um。功能学习目(mu)标(biao)适用之(zhi)域及(ji)(ji)酒精(jing)燃(ran)料部(bu)标(biao)准(zhun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)规(gui)(gui)则(ze)；无接(jie)缝(feng)拼接(jie)镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)认(ren)(ren)(ren)同(tong)(tong)(tong)GB/T8163-1999标(biao)准(zhun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)规(gui)(gui)则(ze)；直(zhi)缝(feng)焊(han)(han)(han)(han)镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)认(ren)(ren)(ren)同(tong)(tong)(tong)GB/T3091-2001。 所(suo)有自然(ran)环境下，DN20-DN150认(ren)(ren)(ren)同(tong)(tong)(tong)无接(jie)缝(feng)拼接(jie)或焊(han)(han)(han)(han)工(gong)镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，DN200往(wang)上认(ren)(ren)(ren)同(tong)(tong)(tong)转(zhuan)鼓镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，也可以项目(mu) 必须认(ren)(ren)(ren)同(tong)(tong)(tong)客户明确提出的繁(fan)多镀(du)(du)(du)(du)(du)锌管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。不(bu)锈(xiu)钢(gang)材(cai)镀(du)(du)(du)(du)(du)锌焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)扣(kou)件认(ren)(ren)(ren)同(tong)(tong)(tong)推制(zhi)(zhi)(zhi)或抑(yi)制(zhi)(zhi)(zhi)加工(gong)制(zhi)(zhi)(zhi)作(zuo)加工(gong)制(zhi)(zhi)(zhi)作(zuo)工(gong)艺 。 履行职(zhi)责标(biao)准(zhun)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)理(li)规(gui)(gui)则(ze)：碳钢(gang)对(dui)焊(han)(han)(han)(han)镀(du)(du)(du)(du)(du)锌焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)扣(kou)件GB/T12459-2005 钢(gang)材(cai)制(zhi)(zhi)(zhi)对(dui)焊(han)(han)(han)(han)镀(du)(du)(du)(du)(du)锌焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)扣(kou)件GB/T13401-2005 碳钢(gang)不(bu)锈(xiu)钢(gang)弯管(guan)(guan)(guan)(guan)(guan)(guan)(guan)SY/T5257-2004