12 of the threaded steel can replace 16 of the screw steel? But the same proportion. Thanks
Now Tianjin Tiantai into 12 of the price is 3900 yuan a ton, 16 tons of steel a price is 3850 yuan. 12 of thread steel is 50 yuan more expensive than 16 thread steel.
12 of the screw steel, rice weight is 0.89kg/m, 16 of the screw steel, rice weight is 1.57kg/m, with 12 of the thread steel instead of 16 of the screw steel, to the same proportion, that in dosage will be more.
