?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "//www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
PE保(se)(fu)和PEF保(se)(fu)区(rou):(xi)pe环保材料Qpef多ؓz(pin)圑֛收材(kou);pe(juan)吸_pefd吸水Qpe(juan)(zhan)(xi)降解保(se)(fu)Q保温管的(juan)(kou)p(sui)ef会降解的Q您(xi)(zui)(luo)(bang)解Q高..
一、(huo)(suo)就要打但(cheng)(tuan)必(sui)L焊接(sha)处的镀(wen)(han)(jia)(jia)()()(duo)否则(mei)生气泡、砂(tong)眹{(huo)焊等。(ta)(shan)(mei)焊缝(hong)(zhan)Q(han)度降低。焊()前(jia)(jia)()(bang)、热(zan)水管道防(guan)保(liao)(wei)(wei)管(fei)焊()特(hao)热(zan)水管道防(guan)保(liao)(wei)(wei)?.
Q、导(jie)系?W/m.k 0.027-0.033 技(lian)容?Kg/m3 45-60导(jian)(zan)pL(hui) W/m.k 0.016-0.024使用温度 ?-90- 120(xiang)孔?.
PEQ(ben)是(yi)聚乙(wu)烯(Polyethylene of raised temperature resistance(fei)英(bi)文羃(ji)写)Q(ben)一(cun)般P(li)E(geng)材l水(geng)道(fei)应用范围ؓ低于40?.