脚手架和矩形管冷弯成型时不同的特点冷弯脚手架、冷弯矩形管是通过外辊与管坯外壁的单向接触形成弯矩使带料弯折,冷弯会使弯折线产生压缩,压缩效应使弯折线纵向伸长,弯折处金属出现堆积变厚,这就是冷弯的压缩/增厚效应。Cold-formed square pipe and…

北京市场脚手架价格小幅跟涨。今日原料钢坯以及带钢价格一早就出现拉涨，受此带动，北京市场脚手架价格小幅跟涨，涨幅20元。但据贸易商反馈，今日是“五一”小长假前的最后一 天交易日，市场总体成交不畅，终端采购放慢采购计划，个别公司已经放假。因此总体来看，市场有价无市，五一期间没有期货的指导，价格或报稳为主。

The price of market management in Beijing has been rising slightly. Today, the price of raw material billet and strip steel has risen in the early morning. Driven by this, the price of square pipe in Beijing market has risen slightly, by 20 yuan. However, according to TRADERS'feedback, today is the last day of trading before the May Day holiday. The overall market turnover is not smooth, terminal procurement slows down the procurement plan, and individual companies have taken vacations. Therefore, in general, the market has no market value, no futures guidance during the May Day period, the price or stability of the main.

价格方面：本地1寸(2.5mm)脚手架价格为4610元(吨价，下同)，4寸(3.75mm)脚手架价格为4450元(吨价，下同)，6寸(4mm)脚手架价格为4640元；市场整体报价比昨日上涨20元。

Price: Local 1-inch (2.5mm) square tube price is 4610 yuan (ton price, the same below), 4-inch (3.75mm) square tube price is 4450 yuan (ton price, the same below), 6-inch (4mm) square tube price is 4640 yuan; the overall market price is 20 yuan higher than yesterday.

　　厂家解读门式脚手架的规范标准【国标】在门式脚手架行业当中，门式脚手架是应用最为多的一种，也是备受大家欢迎的一种。门式脚手架的规范标准情况怎么样呢？在搭设之后验收不可少，这是非常重要的一项，否则不可靠的移动脚手架搭设，可能会造成人身财产等方…