明日国内方管价格或将趋强调整厂家出清日产方管窄幅调整，今日唐山方管价格开盘涨10后成交顺畅，盘中受钢坯累涨20刺激影响，方管厂家追涨10，多家厂家出清日产，连续多日 的期货上涨极大地提振了下游信心；唐山355方管主流较昨涨10，中宽带较昨持稳，市场…

昆明方管市场价格小幅下跌，市场成交一般。据了解，今日全国主要市场方管价格稳中偏弱，目前20mm普板均价3974元/吨，较上个交易日跌4元/吨。昆明市场，近期钢厂资源陆续到货， 截止到今天，据本网不完全统计，社库总量1.15万吨左右，较上周增加0.05万吨。成交方面，近期市场需求十分疲软，整体成交情况一般。另悉，临近月 底，方管厂家为回笼资金，多以价换量，因此，今日方管厂家报价小幅松动。整体来看，短期昆明市场雨水充足，需求疲软，预计后期昆明市场方管价格以震荡走弱为主。

Kunming Fangguan market prices fell slightly, the market turnover is general. It is understood that the price of square tube in the main market of China is stable and weak today. The average price of 20mm plate is 3974 yuan/ton, which is 4 yuan/ton lower than the last trading day. Kunming market, steel plant resources have recently arrived. Up to now, according to incomplete statistics of our network, the total amount of social storage is about 115,000 tons, an increase of 0.05 million tons compared with last week. In terms of transaction, the market demand is very weak in the near future, and the overall transaction situation is general. It is also noted that near the end of the month, the manufacturers in charge of Square Management will exchange more money for quantity at price. Therefore, the quotation of Square Management Manufacturers is slightly loosened today. Overall, the short-term market in Kunming has abundant rainwater and weak demand. It is expected that the price fluctuation will weaken in the latter part of the market. 方管价格方面：目前20mm柳钢、重钢、湘钢普板4220元/吨，低合金加150元/吨。

As for square pipe price, it is 4220 yuan per ton for 20mm Liugang, Chongqing Steel and Xiangtan Steel, and 150 yuan per ton for low alloy.

　　导致无缝方管点腐蚀的材料因素分析今天小编为各位讲解一下影响无缝方管点腐蚀的材料因素都有哪些。合金成分对无缝方管来说，0、10及F等元素是使合金具有良好抗点腐蚀性能的主要合金元素。其他一些元素也可能有一定的效果，K等元素则会降低无缝方管的抗…