As soon as winner coming,it is very Frequent with a fog haze weather in China. To improve it , the government department will take the vehicle limit line, heavy industry peak production or limit production measures,especially iron and steel industry. Due to the limited winter,the priceis likely to go up ,meanwhile it is likely to appear shortage of all kinds of seamless steel pipe, Lsaw welded tube,galvanized pipe ,square and rectangular pipe and so on . Honest to advice steel pipe distributors keep appropriate stock to deal with the arrival winter . Hope this imformation is useful ,any detail or doubt can contact me July july@zssteeltube.com