soundproofing curtain

this curtain isdifferent from other ordinary curtain, it can stop noise ,sunshine line, water,moist and so on.It is composed by three damping and soundproof materials .themax width is 1m ,the length is available by your request. all the material isen-friendly. it can be used home, construction area,office,machine home otherplace where noise is stopped. it is easy to install, by sticked,by hanging andso on