预计短期内银川方管市场以弱势震荡为主出货…方管本周银川市场方管持稳观望，成交清淡。本周远期市场全天偏弱震荡，现货方面，市场出货差，多数商户日出货40-50吨。资源方面，目前银川区域卷板库存偏低，据不完全统计，银川整体卷 板库存在0.59万吨左右，主要以酒钢及八钢资源为主，较上周库存继续小幅增加。近日八钢到货偏少、而酒钢及太钢出厂价格偏高影响…

无缝方管是由无缝钢管冷拔挤压成型的方型钢管，并非直出的焊接方管，而焊接方管也称焊管，是用钢板或带钢经过卷曲成型后焊接制成的方管。焊接方管生产工艺简单，生产效率高，品种规格多，设备资少， 常用材质为：Q235A，Q235C。

Seamless square pipe is a square pipe formed by cold-drawing and extrusion of seamless steel pipe, not a straight welded square pipe. Welded square pipe, also known as welded pipe, is a square pipe made of steel plate or strip steel after curling and forming. Welded square pipe has the advantages of simple production process, high production efficiency, many varieties and specifications, and less equipment. Commonly used materials are Q235A and Q235C. 

一、焊接方管是一种空心方形截面型钢方管,也称为空心冷弯型钢.它是以热轧或冷轧带钢或卷板为坯料经冷弯曲加工成型后再经高频焊接制成的方形截面形状尺寸的型钢。

1. Welded square pipe is a hollow square section steel square pipe, also known as hollow cold-formed steel. It is a square section shape and size steel made by hot-rolled or cold-rolled strip or coil plate after cold bending processing and high frequency welding. 

厚壁方管除壁厚增厚外情况,其角部尺寸和边部平直度均达到甚至超过电阻焊冷成型方管的水平，R角的大小一般是壁厚的2倍-3倍之间.也可以根据客户的需要，生产客户所需大小的R角方管；

In addition to wall thickness, the corner size and flatness of thick-walled square tubes reach or even exceed the level of resistance welding cold-formed square tubes. The size of R angle is generally between two and three times of wall thickness. The R angle can also be manufactured according to the needs of customers. 

二、无缝方管是一种具有中空截面、周边没有接缝的长条钢材.是用无缝管通过模具的4面挤压形成的方管，方管具有中空截面,大量用作输送流体的管道.主要应用于液体输送,液压支架,机械结构,中低压.高压锅炉管,热交换管,气体.石油等行业.他比焊接的更坚固，不会出现裂缝。

2. Seamless square pipe is a kind of long steel with hollow section and no seams around it. It is a square pipe formed by extrusion of seamless pipe through four sides of the die. The square pipe has hollow section and is widely used as a pipeline for conveying fluid. It is mainly used in liquid conveying, hydraulic support, mechanical structure, medium and low pressure, high pressure boiler pipe, heat exchange pipe, gas, oil and other industries. It is stronger than welding and will not. Cracks appeared. 

国内方管市场价格稳中有涨个别地区低价成交…方管方管市场价格稳中有涨。主导市场，北京、广州以稳为主，天津、上海小幅上涨。昨日在期螺飘红的刺激下，市场信心略有恢复，虽然方管市场需求量依旧偏弱，但个别地区低价成交有所好转。今早开盘，期螺再次走高，钢坯也有10元的拉涨，方管市场情绪有所缓和。所以今日开市，方管市场价格稳中有涨。从市场了解到，今日各地成交普遍… 唐山方管市场价格弱势维稳厂家心态谨慎观望…方管唐山方管市场价格弱势维稳。今日开盘，期货市场低开高走，不过由于近期成交较为一般，今日唐山中板暂稳运行。市场方面，目前临近假期节日，方管厂家心态谨慎观望，基本出货为主。现需求端愈发疲弱，短期虽有低位库存支撑，但下游操作亦为谨慎，整体市场交投氛围略显清淡。另外，12月底将至，方管厂家也多回笼资金操作。钢厂方…