郑州方管价格或震荡偏弱运行较昨日无变化4…方管今日郑州市场方管最新价格行情主流走势表现平稳运行，其中友发无垫杠方管30*30*2.5 Q195-Q235的价格：4400元/吨，价格平稳；友发无垫杠方管40*40*2.5 Q195-Q235的价格：4300元/吨，价格较昨日无变化；友发无垫杠方管50*50*2.5 Q195-Q235的价格：4300元/吨，维持昨日价格。The latest price trend of square t…

北京市场镀锌方管市场价格小幅上涨，4日北京镀锌方管市场价格较昨上涨30元，方管市场成交略有好转。市场方面，前两两日黑色系期货连续上涨，在一定程度上提振了市场心态。贸易商选择稳价减 少议价空间或者小幅上调价格以带动出货，操作上还是以出货为主。今日热卷期货表现较好，市场信心略有恢复。镀锌价格小幅探涨，虽目前价格有小幅度拉涨，国 营钢厂也反馈良好，但是贸易商认为9月份大涨的可能性不大，还是要靠实际需求支撑。心态方面，目前方管现货市场成交一般，商家心态以谨慎为主。综合来看，预计 短期北京地区镀锌方管价格震荡持稳运行。

Beijing galvanized square pipe market prices rose slightly, 4 Beijing galvanized square pipe market prices rose 30 yuan from yesterday, square pipe market turnover slightly improved. On the market side, the first two days of black futures continued to rise, to a certain extent, boosting the market mentality. Traders choose to stabilize prices to reduce bargaining space or raise prices slightly to drive shipments, or mainly to operate shipments. Today's hot-roll futures performed better and market confidence recovered slightly. Zinc plating prices have risen slightly. Although the current price has risen slightly and the state-owned steel mills have received good feedback, traders believe that the possibility of a big increase in September is unlikely, but it still depends on actual demand. In terms of mentality, at present, the management of spot market transactions is general, and the business mentality is mainly cautious. Generally speaking, it is expected that the price fluctuation of galvanized square tubes in Beijing will be stable in the short term. 方管价格方面：北京镀锌鞍钢有花1.0mm*1250*C报4740元/吨，首钢无 花1.0mm*1250*C报4720元/吨，凤鸣有花1.0mm*1000*C报4340元/吨；兆建有花1.0mm*1250*C报4380元/吨。

As for square pipe price, Beijing Galvanized Anshan Iron and Steel Co. Ltd. will spend 1.0mm*1250*C at 4740 yuan/ton, Shougang No-flower 1.0mm*1250*C at 4720 yuan/ton, Fengming 1.0mm*1000*C at 4340 yuan/ton, Zhaojian 1.0mm*1250*C at 4380 yuan/ton.

分析方管表面缺陷的五种检测方法方管方管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，方管表面不同缺陷类型和形状将产生不同类型的信号。其优点是检测精度高、探测灵敏度高，检测速度快，能检测待检测管材的表面及亚表面，且… 国内方管或将继续趋弱整理厂家操作以出货为…方管方管价格持稳运行，今日方管主流企业持稳运行，原料方面：昌黎部分钢坯公布12月31日--1月2日早上钢坯执行结算价3300；下游管厂逐渐停工，因此方管市场高价成交 低迷，下游方管厂家观望意图明显。午后部分带方管厂家逐渐出清日产。唐山方管降10、中宽带主流方管厂家持稳。今日现货市场，方管较昨主流降20，中宽带较昨降 5-15。…