保证方管曲折和校直最有效的方法方管让现已加工成制品方管具有较小曲折度还得依靠机械东西校直机来完结。所以为了消除方管曲折，一切方管都需求经过冷校直。方管曲折是因为轧机调整不妥，轧制时残留的剩余应力以及因为沿管子截面和长度上冷却不平等缘由形成的。因而，不行能从轧机直接得到很直的管子，只要通过冷校直管子的曲折度才干满意技能条…

唐山方管市场价格稳中偏弱运行。周末受钢坯下跌影响，唐山方管价格普遍小降10-20元，今日早盘价格主稳，但成交弱，盘中部分降价走货，截止16点统计唐山23家方管厂共出货 35860吨，整体成交一般，个别尚可，工字钢7家7600吨，槽钢12家15100吨，角钢5家13160吨。午后钢坯价格持稳，期螺宽幅震荡，市场走势趋稳， 但鉴于需求有限，预计明日唐山方管价格将延续稳中偏弱格局。

Tangshan Fangguan market price is stable and weak. Affected by the drop of billet over the weekend, Tangshan square pipe price generally fell by 10-20 yuan. Today's morning price is stable, but the transaction is weak. Some of the discounted goods go on sale. As of 16:00, 23 square pipe factories in Tangshan have shipped 35,860 tons. The overall turnover is normal. Individually, 7 I-beam steels have 7,600 tons, 12 channel steels have 15,100 tons and 5 angle steels have 13,160 tons. In the afternoon, billet prices remained stable, snail width shocked and market trend stabilized. However, due to limited demand, it is expected that Tangshan Square Tube Price will continue to be stable, moderate and weak tomorrow.

价格方面：现唐城产16-20工报价3900元，大成产14-16工报价3910元，正丰产5#角钢报价3930元，申达产14-20号槽钢报3880元，电力产22-25#槽钢报价4000元。

Price: Tangcheng 16-20 works quoted 3900 yuan, Dacheng 14-16 works quoted 3910 yuan, Zhengfeng 5 angle steel quoted 3930 yuan, Shenda 14-20 channel steel quoted 3880 yuan, electric power 22-25 channel steel quoted 4000 yuan.

明日国内方管价格或仍以维稳为主厂家不缺货…方管方管市场价格继续持平。临近年末，方管现货价格调整幅度不大，方管出货稳中偏弱。据悉，市场平均出货在200-400吨，超级大户出货能达到千吨。目前方管市场规格型号已经基本齐 全，方管厂家不缺货。方管厂家复产近期缓慢到货。而冬储上方管厂家表示并未做库存，一些方管厂家维持今年协议，还有一些方管厂家取消了协议，改做锁价… 方管市场价格基本维稳厂家反馈市场出货略有…方管方管市场价格基本维稳。主导市场，北京、天津、上海和广州均以稳为主。期螺夜盘震荡上扬，早盘继续维持高位走势，期螺盘面连涨几日对 现货市场多少还是有所支撑的，所以今日市场价格普遍维稳，基本没有再出现降价的。午后盘面继续高走，不过现货市场整体还是较为平稳。从市场了解到，北京午 后有个别资源小涨，涨后低价资源成…