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ų̻۵IJϷչ԰ֹ漰ԽԽ̻̣·;ϽΪʵľ˼ӹʽ֣۸ŻݣǼӹҪϣһʵľڻ˸ã䣬ڳָ²ӹƷΪ˻ıϺõPVCľۣǷۡǷۣϣܻ8ӣƬƽ򻯻ģѹͣȻһ̨ƽ򻯻ϡͬѹѹȡģѹƬģܳƬϲDz϶ɡɫ棻ãά͵ŵ㣬Ȼ̬dzгľʯ԰־۲Ʒ԰̻ʩƷʵù˻ûϲ磬ѡе·еĸ͵·Ե̻һƶͰװĻ䡣ˣнֵ͹԰**ССĻ䣬ʵľľܣPVCô໨ģPVCľܲƳɣʵľɫͬԽǷPVCͷľ 1PVCȷľǿ

ڷľ׸áɫܳΡɫϴȱݣPVCвˮ桢ϣҾвΡ״ص㡣±ɫϴ͸ʴ

2pvcпɶǿڷľ

PVCкǿĿԣԺܼ򵥵ʵԱԣжɫɹѡȻľƺľƣɸص㶨ɫ

PVCڽƶ

һϣpvcʴľƣԺܺáǣpvc豸pvcʩٶȿ죬Ҫʩ򣬽ʡ豸ʱͳɱ豸ѣͣΣҪάޱ࣬ʡάޱá

4PVCʹʵľ3

PVCеʹһ10ϣľܳʪˮ򵥸ʴѵӰ졣PVCеʹһΪ2-3꣬PVCеʹʵľ3

5pvcи߻Ⱦ

PVCһͻϡлȾȾɻյص㡣òƷͨȩΪ0.2Իã**ʡľĵʹɳչĹߣ츣ࡣ

PVCڷľоԵƣĿǰPVCһ͵ĻϢõ˴ƹ㡣ڲõĽǿڽϿϩС


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