We focused on international export product development, production and sales. We have improved quality control processes of Crystal Roller Shutter Door to ensure each export qualified product. Commercial Rolling Up Door,Roller Shutter Door for Shop,Crystal Roller Shutter Door,Commercial Roller Shutter Doors Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.highspeedshutterdoor.com Name of product specification Materials Steel factory / origin Today's price (yuan/ton) Yesterday's price (yuan/ton) Change (yuan/ton) Channel steel 8/10#*8mm Q235 Tong Gang 3600 3600 constant Channel steel 16#*8mm Q235 Jinan Steel 3600 3600 constant Channel steel 28#*12mm Q235 Lai Gang 3750 3750 constant Angle Steel 63*6 Q235 Angang 3520 3520 constant Angle Steel 100*10 Q235 Shougang 3310 3310 constant Angle Steel 50*5 Q235 Shougang 3450 3450 constant I-beam 16# Q235 Pode 3900 3900 constant I-beam 25# Q235 Lai Gang 3900 3900 constant I-beam 36# Q235 Lai Gang 3850 3850 constant I-beam 40# Q235 Baogang 3900 3900 constant H-shaped steel 100*100**6*8 Q235 Lai Gang 4450 4450 constant H-shaped steel 150*150*7*10 Q235 Lai Gang 3950 3950 constant H-shaped steel 300*300*10*15 Q235 Ma Gang 4100 4100 constant H-shaped steel 400*400*13*21 Q235 Ma Gang 4220 4220 constant H-shaped steel 500*200*10*16 Q235 Ma Gang 3920-3930 3920-3930 constant H-shaped steel 700*300*13*24 Q235 Ma Gang 4320-4330 4320-4330 constant
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