| Name of product | specification | Materials | Origin | June 4th price | June 8th price | One week ups and downs |
| altitude | Φ6.5mm | Q235 | New Steel | 3800 | 3680 | -120 |
| altitude | Φ8mm | Q235 | Handan Iron and Steel | 3820 | 3710 | -110 |
| altitude | Φ6.5-10mm | Q335 | Ping Gang | 3820 | 3710 | -110 |
| Rebar | Φ12mm | HRB335 | Nanchang Steel | 3470 | 3420 | -50 |
| Rebar | Φ14mm | HRB335 | Nanchang Steel | 3440 | 3390 | -50 |
| Rebar | Φ16-25mm | HRB335 | Nanchang Steel | 3360 | 3310 | -50 |
| Rebar | Φ16-25mm | HRB335 | Ping Gang | 3360 | 3310 | -50 |
| Rebar | Φ16-25mm | HRB335 | New Steel | 3350 | 3300 | -50 |
| Tertiary rebar | Φ16-25mm | HRB400 | Ping Gang | 3510 | 3460 | -50 |
| Tertiary rebar | Φ16-25mm | HRB400 | Nanchang Steel | 3510 | 3460 | -50 |
| Hot rolled coil | 2.75mm*1250*C | Q235 | Handan Iron and Steel | 4380 | 4320 | -60 |
| Hot rolled coil | 3.0mm*1500*C | Q235 | Handan Iron and Steel | 4200 | 4140 | -60 |
| Hot rolled coil | 3.75mm*1500*C | Q235 | Handan Iron and Steel | 4140 | 3980 | -160 |
| Hot rolled coil | 4.75mm*1500*C | Q235 | Handan Iron and Steel | 4140 | 3980 | -160 |
| Hot rolled coil | 5.5mm*1500*C | Q235 | Handan Iron and Steel | 4140 | 3980 | -160 |
| Hot rolled coil | 5.75mm*1500*C | Q235 | Handan Iron and Steel | 4140 | 3980 | -160 |
| Hot rolled coil | 4.75mm*1500*C | Q235 | Shagang | 4150 | 3990 | -160 |
| Hot rolled coil | 4.75mm*1500*C | Q235 | Ma Gang | 4140 | 3980 | -160 |
| Cold rolled plate | 1.0*1000*2000mm | ST12 | Pangang | 5100 | 5100 | 0 |
| Cold rolled plate | 1.5*1000*2000mm | ST12 | Pangang | 5000 | 5000 | 0 |
| Cold rolled plate | 2.5*1000*2000mm | ST12 | Pangang | 5000 | 5000 | 0 |
| Cold rolled plate | 1.0*1250*2500mm | ST12 | Wu Gang | 5100 | 5100 | 0 |
| Cold rolled coil | 1.0*1250*2500mm | ST12 | Handan Iron and Steel | 4860 | 4860 | 0 |
| Puzhong board | 6mm | Q235 | New Steel | 4850 | 4850 | 0 |
| Puzhong board | 8mm | Q235 | New Steel | 4620 | 4620 | 0 |
| Puzhong board | 10mm | Q235 | New Steel | 4520 | 4520 | 0 |
| Puzhong board | 12mm | Q235 | New Steel | 4250 | 4250 | 0 |
| Puzhong board | 14-20mm | Q235 | New Steel | 4200 | 4200 | 0 |
| Puzhong board | 14-20mm | Q235 | Ma Gang | 4200 | 4200 | 0 |
| Low alloy plate | 6mm | Q345 | New Steel | 4970 | 4970 | 0 |
| Low alloy plate | 8mm | Q345 | New Steel | 4720 | 4720 | 0 |
| Low alloy plate | 10mm | Q345 | New Steel | 4450 | 4450 | 0 |
| Low alloy plate | 12mm | Q345 | New Steel | 4370 | 4370 | 0 |
| Low alloy plate | 14-20mm | Q345 | New Steel | 4300 | 4300 | 0 |
| Galvanized sheet | 0.5*1000*2000mm | JY[150g/m2] | Wu Gang | 6000 | 5850 | -150 |
| Galvanized sheet | 0.7*1000*2000mm | JY[150g/m2] | Wu Gang | 5750 | 5750 | 0 |
| Galvanized sheet | 1.0*1000*C | JY[120g/m2] | New Senior Middle School | 5700 | 5650 | -50 |
| Galvanized sheet | 1.0*1000*C | JY[150g/m2] | Bengang | 5600 | 5450 | -150 |
| Galvanized sheet | 1.0*1000*2000mm | JY[150g/m2] | Huang Shi | 5950 | 5950 | 0 |
| Color coated roll | 0.326mm*1000*C | SGCC | Huang Shi | 8000 | 8000 | 0 |
| Color coated roll | 0.426mm*1000*C | SGCC | Huang Shi | 7150 | 7100 | -50 |
| Color coated roll | 0.5mm*1000*C | SGCC | Huang Shi | 7100 | 7050 | -50 |
| Seamless steel pipe | 76*4.5mm | 20# | Hongdu | 4800 | 4800 | 0 |
| Seamless steel pipe | 89*4mm | 20# | Hongdu | 4750 | 4750 | 0 |
| Seamless steel pipe | 108*4mm | 20# | Hongdu | 4750 | 4750 | 0 |
| Seamless steel pipe | 159*6mm | 20# | Hongdu | 4650 | 4650 | 0 |
| Seamless steel pipe | 219*8mm | 20# | Xinye | 5250 | 5250 | 0 |
| Welded pipe | 1.5 inch | Q235 | Tangshan | 3400 | 3400 | 0 |
| Welded pipe | 4 inch | Q235 | Tangshan | 3600 | 3600 | 0 |
| Welded pipe | 6 inches | Q235 | Tangshan | 3750 | 3750 | 0 |
| I-beam | 25# | Q235 | Wu Gang | 3750 | 3750 | 0 |
| I-beam | 36# | Q235 | Lai Gang | 3830 | 3830 | 0 |
| Channel steel | 16# | Q235 | Ma Gang | 3700 | 3700 | 0 |
| Channel steel | 25# | Q235 | Wu Gang | 3900 | 3900 | 0 |
| Angle Steel | 50*5mm | Q235 | Ma Gang | 3600 | 3600 | 0 |
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Flat washers are usually thin pieces of various shapes, used to reduce friction, prevent leakage, isolate, prevent loosening or disperse pressure. Such components are found in many materials and structures to perform various similar functions. Due to the limitation of the material and technology of threaded fasteners, the bearing surface of bolts and other fasteners is not large. Therefore, in order to reduce the compressive stress of the bearing surface and protect the surface of the connected parts, washers are used.
Flat Washers,Stainless Steel Flat Washers,Large Flat Washers,Flat Rubber Washers
Jiangsu Jiajie Special Screw Co., Ltd , https://www.tzbolts.com