ʯ\W(wng)SԭϽپķxǣ\z\z\z僸\z\XϽz僸ߠzϡϽzԼܽzڲͬh(hun)еʯ\W(wng)Sxòͬ̎k҂Bһʯ\W(wng)SҎ(gu)ɷxʲô?
1.ʯ\W(wng)SҵҎ(gu)Bʯ\W(wng)SһNB(ti)W(wng)Yʯ\W(wng)Sи߿gߏչԵĵ̼䓽zSPVC䓽z\ÙCеɣʯ\W(wng)Sʯ\W(wng)Sɵʯ\W(wng)Sʯ\W(wng)Sҵ߅ؾֱһҪھW(wng)ֱpgϲһpgԴ_gϲ䓽zĽ僌ӺPVC僌Ӳܓp
ʯ\W(wng)SҞһγͳa(chn)w߅壬˰װgɷָL/ȹ(5%)߶ȹ(5%)(ni)ÿ1xøɪĆԪxýMbkw߅壬˰װΪa(chn)MbɾW(wng)䓽zP@`W(wng)߅zxôֽzӏʯ\W(wng)Sď
MԺãӹ\ͱɰOӋҪɸNΠɽӞ͵̷Π
2.ʯ\W(wng)SҵĮa(chn)ƷҎ(gu)ʯ\W(wng)S\ÙCپĆܾİξW(wng)(ǾW(wng))ƳɵİܾW(wng)0.15-0.5m(0.5m)ʯ\W(wng)SɸּtɆԪ˼ӏʯ\W(wng)S҉|Yďȣе߅˾xֱİ䓽z
ʯ\W(wng)SҷֽپPVCPEͿӃɂ\õĽپǸ(j)εľͬa(chn)Mǽ(jng)W(wng)Уi߅Ƴʯ\W(wng)SҺZo|