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wƤȫQǡ(x)wS(qing)PUƤИO䃞(yu)ĥ(yu)ͺ⡢ϻ PUǾ۰۰Ƥ;Ѓ(yu)
PU Ӣpoly urethaneĿsW(xu)Q۰
wƤȫQǡ(x)wS(qing)PUƤИO䃞(yu)ĥ(yu)⡢ϻܛmк(qing)g
wƤõƤƤycƤʮָc(din)ܛ˺yֱƤ߀ƤwƤȫQ鳬(x)wSɳl(f)ҲƤںϳɸеһN_l(f)ĸߙnƤƤĥͺϻ|(zh)ܛԼ^Ưȃ(yu)c(din)ѳɞȻƤxȻƤSּ(x)ȵzԭwSɣӺ;W(wng)ӃɌɘO(x)zԭwSɣW(wng)^ֵzԭwS
PUǾ۰۰ƤЃ(yu)ܡڇڄﱣo(h)f(xi)Ӱ֮g(sh)İl(f)չ۰ϳɸܺ͑(yng)泬^ȻƤ볬(x)wS۰gԺĥԵõM(jn)һӏ(qing)@ӵƳƷoɆஔ(dng)(yu)ġ[1]
2(yng)
bЬ܇v܇|܇_|ҾߡƤɳl(f)[2]
3PUƤcȻƤ
ȻƤھЃ(yu)ȻԱ˂Va(chn)ƷI(y)ƷS˿ڵLƤ(sh)ȻƤѲܝM˂@NQ@һìܣƌW(xu)҂ʮǰ_ʼо_l(f)ϳƤԏa(b)ȻƤIJ50оvʷ^̾ϳɸȻƤ(zhn)^
ƌW(xu)҂оȻƤĻW(xu)ɷֺͽMY(ji)(gu)_ʼwSM(jn)뵽PVC@˹Ƥĵһa(chn)ƷƌW(xu)@һA(ch)˶ĸM(jn)̽,ǻķĸM(jn)SͿӘ֬ĸԺM(jn)20o(j)70ϳwSğoF(xin)ᘴ̳ɾW(wng)ճY(ji)ɾW(wng)ȹˇʹľźwS_(d)˶Y(ji)(gu)ȻľW(wng)Y(ji)(gu)Ҫ;(dng)rĺϳɸ(x)Y(ji)(gu)۰ӣஔ(dng)ȻĶʹPUϳɸ^̓(ni)ڽY(ji)(gu)cȻӽԶӽȻָ(bio)ɫɱȻrG;䳣_(d)100fϣ͜Ҳ_(d)Ȼˮƽ[3-4]
^PVC֮PUϳɸ{(jng)^Ƽ҂30ĝо_l(f)ȻƷ@ͻԵļg(sh)M(jn)
PUͿڿF(xin)20o(j)50Ј1964Ű˾_l(f)һNЬ͵PUϳɸ(jng)^20IJо_l(f)PUϳɸoՓڮa(chn)Ʒ|(zh)ƷN߀Ǯa(chn)϶õ˿ٵLԽԽӽȻƤijЩ^ȻƤ_(d)cȻƤyֵij̶ȣճռ(j)ʮҪĵλ[5]
(ni)HЈϳF(xin)˳(x)wS۰ϳɸǵ˹ƤSY(ji)(gu)W(wng)j(lu)ğoϳɸڻķ愓(chung)sȻƤėlԓa(chn)ƷY(ji)Ƶľ_Y(ji)(gu)PU{Ͻn(f)ӵļӹg(sh)l(f)]˳(x)wSe͏(qing)ҵˮʹó(x)PUϳɸ(x)zԭwSȻеՓă(ni)^Y(ji)(gu)߀^|(zh)мԺ˂mԵȷ棬cȻƤ(x)wSϳɸͻW(xu)ԡ|(zh)һa(chn)ӹm(yng)Լˮù׃Եȷ^ȻƤ[4]
(sh)`Cϳɸĸ헃(yu)ȻƤoȡć(ni)ЈϳɸҲѴȡYԴȻƤPϳɸbЬ܇vͼҾߵbõЈĿ϶䑪(yng)÷֮V(sh)֮ƷN֮࣬ǂy(tng)ȻƤoM
4c(din)
wƤҪc(din)
1ζȿԺȻƤ؏_(d)20fΟoѼy͜أ-20棩3fΟoѼy͜ԡC(j)еԺã
2LmУƤк)
3˺я(qing)Ⱥ̈́x(qing)^ߣĥ˺(qing)ȸߣ
4a(chn)ʹòκȾh(hun)܃(yu)Խ
wƤ^ЧƤa(chn)Ʒĺ˺я(qing)ȡɫrGȼʵȷ߀(yu)ȻƤѽ(jng)ɞ鮔(dng)ϳɸİl(f)չwƤKۣøߘ(bio)̖ͻˮϴвЙC(j)܄ЉAԵ|(zh)ϴԷ|(zh)ܓpwƤʹ×lᶨ͜ض100r^25 犣120r^10130r^5
5PUƤƷB(yng)
坍
1.մˮϴ섩ϴͲϴ
2.ܸϴ
3.ֻˮϴˮϴضȲܳ^40
4.ꖹؕ
5.ܽ|һЩЙC(j)܄
6.PUƤҪb״ղ,b
PUcԣ
1.(qing)ȸߣЏܛˮԺɷˮ
2.͜Ծ^õĿ(qing)Ⱥ _(qing)ȣ^õϻԺˮⷀ(wn)
3.ĥ^ܾӽȻƤϴȥۣp
4.⻬oM(jn)жN̎ȾɫƷN