分析脚手架表面缺陷的五种检测方法脚手架表面缺陷的检测方法，主要有以下五种：一电涡流检测.电涡流检测有多种形式，常用的有常规涡流检测、远场涡流检测、多频涡流检测和脉冲涡流检测等，利用电涡流传感器对金属进行感应，脚手架表面不同缺陷类型…

无锡脚手架价格持续走弱，市场方面，今本地市价主流下行，早盘期螺跳水运行，对节后归来的脚手架市场信心形成一定打击，脚手架厂家操作多低价出货为主。据本地脚手架厂家反馈，降后市场交投表现平平，下游买涨不买跌心态明显。目前部分贸易商表示南北倒挂现象难改，不愿意再进一步扩大亏损，因此采取卖空单不拿货操作来规避风险。考虑到目前成本端难 撑，因此预计短期无锡本地脚手架价格持续趋弱运行。

Wuxi Fangguan prices continue to weaken, the market, today's local market price mainstream downward, snail dive operation in the early trading period, the market confidence returned after the festival formed a certain blow, Fangguan manufacturer operation mainly low-cost shipments. According to feedback from local managed manufacturers, after the fall, the market performance was flat, and the downstream buying-up-and-not-buying-down mentality was obvious. At present, some traders say that the phenomenon of inversion between the north and the south is difficult to change and they are unwilling to further expand their losses. Therefore, short-selling orders are not used to avoid risks. Considering the current cost side is difficult to support, it is expected that the short-term local management price will continue to weaken.

脚手架价格方面：热轧脚手架2.5*(235-355)瑞丰3810，2.5*(145-204)宣钢3800，2.5*(160-355)中天3800，较上个交易日下跌20元/吨。

As for square pipe price, hot-rolled square pipe 2.5* (235-355), Ruifeng 3810, 2.5* (145-204), Xuanhua Steel 3800, 2.5* (160-355) Zhongtian 3800, down 20 yuan/ton from the previous trading day. 

　　焊接脚手架与无缝脚手架的本质差别在哪里？无缝脚手架是由无缝钢管冷拔挤压成型的方型钢管，并非直出的焊接脚手架，而焊接脚手架也称焊管，是用钢板或带钢经过卷曲成型后焊接制成的脚手架。焊接脚手架生产工艺简单，生产效率高，品种规格多，设备资少， 常用材…