h(hun)
  (dng)ǰλã(y) > h(hun)
PVC
>a(chn)ƷҎ(gu)


>ܲĹܼb
    1ܲĵи(j)ʹҪȡL(zhng)Ⱥֹ䏡СAƬи߲ȡҪܲи(yng)ñփɶ˴ֱƽSȥë߅M(jn)^(gu)
    2ܲĺ͹ܼճӣճǰM(jn)ԇMb_bλòØ(bio)ӛɰ򼆲pܼܲc(din)Ȼմбͪ޼ϴͪ]l(f)ԺBܲĹܼճϷëˢͿһճτ©ͿͿƽD(zhun)bĽMϽǶȣľÓʹܲȫпs23犺󼴿й̶˕r(sh)мɏ(qing)в_(ki)D(zhun)t(hu)ɝB©Mbꮅ󼰕r(sh)ȥճ̎ĶճτԱֹܵ坍
    3U(ku)ڹܵBӣȌU(ku)ڹܵă(ni)ֱܲ벿ֵɃzȦD(zhun)ڔU(ku)ڶ˵İۃ(ni)zȦ¶ȵһ⣩ȻBzȦϡֱܵIJ벿Ϳϝ(rn)ֱܲˌ(du)(zhn)U(ku)ڶ˲롣(j)ʩF(xin)(chng)վ(xin)C(j)˰茢ֱܲ(bio)ӛλU(ku)ڲֵL(zhng)ȣֱϘ(bio)ӛL(zhng)ȑ(yng)ڔU(ku)L(zhng)ȣ

>a(chn)ƷY
    |(zh)ABSPVC-Ua(chn)ƷҪ(ni)ڹ⻬o(w)ëzSp΢۰͘O(x)Сs|(zh)ɢ
    byT(mn)ܼͬһҎ(gu)übӰͬһҎ(gu)Ͼÿһ㲻^(gu)50
    (ch)a(chn)Ʒr(sh)ɒSײܓpҪՕ
    \(yn)ݔr(sh)ɒSײܓpҪՕ
    (w)
    1ABSPVC-Uܵϵy(tng)ϵɫSɫɫÑ(h)xáÑ(h)Ҫɫɸ(j)Ҫơ
    2ABSPVC-Uܵϵy(tng)(j)Ñ(h)Ҫ׹(yng)Ñ(h)ҪDZf(shu)(sh)a(chn)ƷÑ(h)Ҫ
    3˾O(sh)Ќ(zhun)I(y)b(du)Ñ(h)ṩF(xin)(chng)b(w)ɼg(sh)ˆTF(xin)(chng)ָ(do)b(yng)ճӄ
    4˾a(chn)Ʒ۳һ(ni)(sh)Ñ(h)k\(yn)Ñ(h)ӆ؛Ɂ(li)늁(li)“(lin)ϵֱǢՄgӭxñS(chng)a(chn)ƷϣÑ(h)r(sh)ӳʹrFҊ(jin)ԱM(jn)
    5YσH޸ˡ֪ͨ

>ӆ؛֪
    ӆ؛r(sh)עُ(gu)a(chn)Ʒ̖(ho)ߴ(sh)
 

  
]a(chn)Ʒ
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