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快速報(bào)價(jià)系列RTA步進(jìn)電機(jī)驅(qū)動(dòng)器MIND B5貨期好
快速報(bào)價(jià)系列RTA步進(jìn)電機(jī)驅(qū)動(dòng)器MIND B5貨期好
絲扣密封不得使用鉛汕麻絲。用厭氧密封膠密封的管接頭，養(yǎng)護(hù)期不得少于24H，期間不得進(jìn)行試壓在熱水供應(yīng)管道系統(tǒng)中，應(yīng)采用內(nèi)襯交聯(lián)聚乙烯（pex）的鋼塑復(fù)合管和內(nèi)襯聚丙烯（PP）的管件.當(dāng)采用橡膠密封時(shí)，應(yīng)采用耐熱橡膠密封閣.冷水管所用管材配件不得用于熱水管進(jìn)系統(tǒng)中。埋地鋼塑復(fù)合管道應(yīng)有可靠的防腐措施。在水池（箱)沒水部分的管道應(yīng)釆用內(nèi)外涂槊鋼管及管件.泄水管、出水管應(yīng)采用內(nèi)外及管口端涂塑管段。

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產(chǎn)品質(zhì)量認(rèn)證是認(rèn)證檢驗(yàn)機(jī)構(gòu)依據(jù)標(biāo)準(zhǔn)和相應(yīng)的技術(shù)要求對(duì)產(chǎn)品質(zhì)量進(jìn)行檢驗(yàn)、評(píng)定。經(jīng)檢驗(yàn)合格的產(chǎn)品向產(chǎn)品所有人（送檢人）出具認(rèn)證報(bào)告或頒發(fā)證書。產(chǎn)品在上市銷售前，質(zhì)量認(rèn)證是必須的。而產(chǎn)品能否持續(xù)穩(wěn)定運(yùn)轉(zhuǎn)、耗能多少，還與產(chǎn)品設(shè)計(jì)、材料、元件特別是電機(jī)有關(guān)。效果：空氣凈化器的凈化效果，是以單位面積潔凈空氣率表示（記?。阂欢ㄊ菃挝幻娣e）。權(quán)威檢測機(jī)構(gòu)美電制造商協(xié)會(huì)（簡稱：AHAM），對(duì)凈化效果的檢測，項(xiàng)目為灰塵、花粉、二手煙。