北京方管市场价格稳中窄幅调整厂家心态不稳本周北京方管市场价格稳中窄幅调整。工角槽方面：本周初，期螺受环保限产政策带动盘面一路高歌直线拉升，带动唐山钢坯和方管价格全面上涨，北京市场价格也小幅趋强，交投氛围好转，但考虑临近十一假期，方管厂家…

镀锌方管的国标与非国标的区别——：就是管壁的实际厚度非标的都比国标的壁薄一些的。主要规格不是很标准，举个例子：镀锌方管的国标与非国标的区别（1）非标的都比国标的壁薄一些的（2）非标的定尺长度也没有达到国标；（3）非标的比国标便宜

The difference between the national standard and the national standard of galvanized square pipe is that the actual thickness of the pipe wall is thinner than that of the national standard. The main specifications are not very standard. For example, the difference between the national standard and the national standard for galvanized square tubes (1) the non-standard is thinner than the national standard (2) the non-standard length is not up to the national standard; (3) the non-standard is cheaper than the national standard.

　　徐州镀锌方管市场价格随行震荡订货稍受影响徐州镀锌方管市场价格随行震荡。市场方面，今日期螺2001午盘出现增仓放量下跌，空头发力，关注夜盘；现货原料带钢355mm系列现货裸价主流3300-3330，期货 3280-3310元，较昨午盘变动不大；河北主导管厂现焊管4寸(3.75m…