镀锌方管价格持续小幅下跌趋势运行厂家对后市不…本周镀锌方管市场价格持续小幅下跌趋势运行，彩涂板市场价格也持续下调运行。本周周初，北方市场民营钢厂出现价格上调运行，上涨幅 度在20-30元/吨不等，国营钢厂价格坚挺，价格维持不变。通过和方管厂家联系得到…

邯郸镀锌方管价格主稳个调。市场方面，今期货偏弱震荡抑制下游入市积极性，早晨开市钢坯累 涨20，现货心态多观望，方管厂家稳价出货为主，市场成交整体一般，仅个别低位尚可，方管厂家方面，今普阳方管厂家3880，方管厂家心态偏于挺势，本周市场库存数据尚 可，武安地区镀锌方管库存29万吨左右，周环比降5万吨。 短期考虑市场需求谨慎但底部支撑尚存，故综合以上，预计短期本地镀锌方管价格震荡整理运行。

Handan galvanized square tube price main stable adjustment. In terms of the market, the futures market is weak today, which suppresses the enthusiasm of downstream companies to enter the market. In the morning, the steel billet has risen by 20. The stock mentality is more wait-and-see. The square tube manufacturers are mainly stable in price. The overall market transaction is general, only a few low-level is acceptable. As for the square tube manufacturers, the mentality of the manufacturers in Puyang is 3880, and the inventory data of the market this week is still low However, the inventory of galvanized square pipes in Wu'an area is about 290000 tons, and the cycle to ring ratio is 50000 tons. Considering the market demand is cautious in the short term, but the bottom support still exists, so it is expected that the local galvanized square tube price will fluctuate in the short term.

方管价格方面：目前市场上邯钢14-25mm普板价格在3890元/吨，普阳、冀钢14-25mm普板市场价格3880-3890元/吨，以上价格较上一交易日持平。

Square tube price: at present, the price of 14-25 mm plate in Handan Iron and Steel Co., Ltd. is 3890 yuan / ton, while that of Puyang and Jigang is 3880-3890 yuan / ton, which is the same as the previous trading day.

　　分析方管表面缺陷的五种检测方法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…