PVCχʲôϣ
ϰһǰr(ji)PVC彛(jng)ʹõPVCχһN^Ҋ(jin)PVCVʹڻbȷСҪʹһ(li)˽һPVCôԼPVCăr(ji)(li)һһ°ɡ
PVCô?
PVCС^(q)o(h)ڱһNxþϩϲ|(zh)ɵһNwһNǽY(ji)ԵYһPVCļӹ^(gu)(hu)һЩ(wn)(rn)ɫ_ӄPVCȼߏ(qing)Լ(qing)ķܡ
?yn)?/span>PVCxõǾϩϲ|(zh)P(gun)ڴ(sh)ᡢA}^õ㼑PVCP(gun)߀ԭ(qing)Լ^(qing)ķePVC(du)ƽˮ׃Σ(du)^Ҳ^ο
PVCϰĘ(bio)(zhn)ӻ
PVCС^(q)o(h)ڵĘ(bio)(zhn)Сӻ܉(j)ÑIJͬM(jn)жӹa(chn)(yng)Įa(chn)ƷһPVCɫʷ(sh)ɫϵО^(gu)ҲһЩ°y´ʯyȡ
PVCС^(q)o(h)ڵʹÏV
PVCo(h)^αĿzӡ̎SҲPVCRƬӹ
(du)c(din)PVCڻʯ͡t(y)ˎͨӍˮ̎O(sh)ȵȷ
PVCr(ji)
?yn)?/span>PVCϰĘ(bio)(zhn)СͬȲͬxxõӹˇsy̶Ȳͬr(ji)(du)ҲDzһӵͨ(li)vPVCÿƽЎʮװԪġeN(xio)PVCą^(q)ͬr(ji)Ҳ(hu)в^(gu)r(ji)(hu)̫߀ͬһSҴl(f)ُ(gu)Ԓr(ji)߀(hu)ӱ˃(yu)ݵ(zhn)ُ(gu)l(f)PVCԒ܉ȥ߅Ј(chng)˽ԃ(xn)x?xn)r(ji)ȸߵĮa(chn)Ʒُ(gu)I(mi)
PVCχm÷
ڸٰl(f)չÿ춼(hu)µĹ̽O(sh)ʩ^(gu)бض(hu)o˂һ_h(hun)ȫ(wn)}ȞҪPVCχ͵Ľh(hun)õĻW(xu)(wn)ԣgӲȴ(qing)ȴ(qing)ȸߣ⾀ϻͻȼϨԣ^ܿɿ❍ƽˮ׃ӹc(din)ԓa(chn)Ʒǃ(yu)ȵğͲϣֲP䓺gԺϳɲVڻʯ僡ˮ̎O(sh)h(hun)O(sh)Vɽt(y)ˎӡͨӍbИI(y)
pvcʩ;Vͨڼ¶I(y)(chng)ҪO(sh)ĸ߶ȲС1ēҪDZCʩ˵İȫ
PVCϓ_M10ˮɰ{MU10(y)ruu0.5*0.5ĻA(ch)(qing)nL(fng)(wn)pvcO(sh)2.5ߣ3מһʩn̎ͿI(y)Q(chng)ȫ|(zh)ʩZ(y)_(ki)l(f)(xing)Ŀ̘I(y)V(yn)NͿ(xi)V
PVCϓʩꮅc֮g㕽ƽֱҪһlֱϣc岻пp϶ڈ(chng)ⲻܿҊ(jin)(chng)(ni)ʩnؾO(sh)üt߸ðȫFҹgʾ
PVCχڌ(sh)ԣȫԶõVЈ(chng)J(rn)ʩ(bio)(zhn)I(y)Ҏ(gu)ȫr(sh)̷