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[Ѷ] PVC - ʱкɫϻ

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[LV.3]żII

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2019-5-11
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2019-7-7 15:53:59 | ֻ | |Ķģʽ

ϻС򻨺СϻСнֻƵ

еIJϷһЩ仯pvcֲάϲڽġҵװβϼճþߵȷ涼Ӧãй㷺ǰԭ衢ƿǴɣΪ·Ҫڲøʵã۴󷽵IJѳΪе·زٵļҾȻı֣Ļ㳡԰СŨϢڳне̻ͲõPVCϲġԭ򵥵ĻеľƻУٵеpvcУʵõĵط˺ܴߡpvcнʱԪغɫУʹгΪķ羰

pvcŵ㣺

1. pvc䲻ʹЧֹľ˷ѣڶԻĹס

2.ڶPVCпϻʹǿڻʹ20ꡣPVCпɷ桢ʴ

4pvcвϱ治Ҫ󣬾Ͳ󣬲ϴڵɫͳһҲɫ

5pvcпȼͻ6pvcе̼޷7pvc׼Ĥࡣ

8.PVC΢ݲϲˮѣPVCҲвˮѵص㡣

pvcУֱӶƹӦ֤Ʒ֤ʱ䣡pvcм۸Żݣ棬нӴ̶ɸݿͻҪpvcУɶƸֹpvcС


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