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彩色硅芯管去哪里買
性能特點(diǎn)其內(nèi)壁的硅芯層是固體的，永久的潤(rùn)滑劑；其內(nèi)壁的硅芯層是被同步擠壓進(jìn)高密度聚乙烯管道壁內(nèi)，且均勻地分布整個(gè)管道內(nèi)壁 		2020-08-13
多通道波紋管哪里買
集束管是由松散的微管單元組成的微管束和外護(hù)套兩部分在廠家組合而成，但是微管和微管之間，微管單元和外護(hù)套之間是不能粘連的， 		2020-08-13
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