钢结构方管的常见种类有哪几种1.轻钢结构，就是把彩钢板作为屋面和墙面，把薄壁型钢作为檩条和圈梁，并将焊接H型钢截面作为主和梁的一种结构，其连接则是采用螺栓连接或是焊接。轻型钢结构通常采用Q345方管和Q235方管，且大部分是Q345方管。Q…

西安市场方管价格基本持稳，成交一般。今日外围邯郸市场价格下跌20元报3780元/吨，成交一般。反观西安，方管价格稳报3900元/吨，与昨日价格相比持平。近期由于西安方管市场需求持续低迷，方管厂家出货未见好转。目前，西安市场大户日均出货也仅在二三百吨左右，成交量相较往年同期水平相比大幅减少。虽然成交一般，但是西安 本地商户不打算下调市场价格，主要是目前西安市场热卷资源较少，市场上部分资源较为缺货。对于后市，多数商户表示仍以观望为主。由于市场上资源不多，叠加 需求持续低迷影响，西安市场方管多是弱稳震荡趋势，大幅下跌的可能性较小。

Prices in Xi'an market are basically stable and trading is normal. Today, the periphery of Handan market prices fell 20 yuan to 3780 yuan / ton, trading average. On the contrary, in Xi'an, the Square Management Price was stable at 3,900 yuan/ton, which was flat compared with yesterday's price. Recently, due to the continuing slump in the market demand of Xi'an Fangguan, the shipment of merchants has not improved. At present, the average daily shipment of large households in Xi'an market is only about 2300 tons, and the turnover is greatly reduced compared with the same period in previous years. Although the transaction is normal, the local merchants in Xi'an do not intend to reduce the market price. The main reason is that there are fewer hot coil resources in Xi'an market and some resources in the market are out of stock. For the future market, the majority of merchants said that they were still mainly on the wait-and-see. Due to the lack of resources in the market and the continuous downturn of superimposed demand, the market in Xi'an tends to be weak and stable, and the possibility of a sharp decline is relatively small.

方管价格方面：主导钢厂普卷开平价主流价格3900元/吨，厚规格如10mm、12mm开平板价格略高，低合金卷板主流价格4030元/吨。

　　烟台方管市场或以盘整运行为主厂家心态偏空本周烟台方管市场价格拉涨，成交一般。回顾本周，周初期货市场强势拉涨，本地现货市场跟涨，成交尚可，中期期货冲高回落，本地市场紧跟期货回调，而后市场暂稳，出货一般。现烟台方管主流价格在3780元/吨。成交方面，…