612 SCHEDULE S. Met als and manu- factures of. Pr oviso, Minimum thinness . Sheets, etc. P roviso . Maximum thinness . Coated sheets, etc . Ot her metals im- posed . T herm osta tic meta l, etc . Pr oviso . Pickled . Tin plates, etc . Manufactures of tin plates , etc. Structural shapes, etc . SEV EN TY- FIR ST CONGRESS . Snss. II. Cs . 497. 1930 . Provided, That all sheets or plates of iron or steel thinner than one hundred and nine one-thousandths of one inch shall be subject to duty as iron or steel sheets . PAR . 308. Sheets of iron or steel, common or black, of whatever dimensions, and skelp iron or steel, valued at 3 cents per pound or les s, th inner tha n one hund red and n ine o ne-th ousa ndths and not thinner than thirty-eight one-thousandths of one inch, forty-five one-hundredths of 1 cent per pound ; thinner than thirty-eight one- thousandths and not thinner than twenty-two one-thousandths of one inch, fifty-five one-hundredths of 1 cent per pound ; thinner than twenty-two one-thousandths and not thinner than ten one-thou- sandths of one inch, seventy-five one-hundredths of 1 cent per pound ; thin ner than ten on e-thousa ndths o f one i nch, eig hty-fiv e one-bu n- dredths of 1 cent per pound ; corrugated or crimped, seventy-five one-hundredths of 1 cent per pound ; all the foregoing when valued at more than 3 cents per pound, 20 per centum ad valorem : Pro- vide d, That all sheets or plates of common or black iron or steel not thinner than one hundred and nine one-thousandths of one inch shall be subject to duty as plate iron or plate steel . p PAR. 309. All iron or steel sheets, plat es, bars, and rods , and all hoop , band, or scro ll iron or stee l, exce pting wh at are known co m- mercially as tin plates, terneplates, and taggers tin, when gal- vanized o r coated with zinc , spelter, or othe r metals, or any alloy of those metals, shall be subject to two-tenths of 1 cent per pound more duty than if the same was not so galvanized or coated ; sheets or plates composed of iron, steel, copper, nickel, or other metal with layers of other metal or metals imposed thereon by forging, ham- mering, rolling, or welding, 30 per centum ad valorem
- thermosta tic
meta l in she ets, pl ates, or other forms, 50 per c entum a d valore m ; sheets and plates of iron or steel, polished, planished, or glanced, by whatever name designated, 11/ 4 cents per pound : Pro vide d, T hat plates or sheets of iron or steel, by whatever name designated, other than polished, planished, or glanced, herein provided for, which have been pickled or cleaned by acid, or by any other material or rocess, or which are cold-rolled, smoothed only, not polished, shall e subject to two-tenths of 1 cent per pound more duty than the rates provided on corresponding thicknesses of common or black sheet iron or steel . PAR. 310. Sheets or plates of iron or steel, or tog§ers iron or steel, coated with tin or lead, or with a mixture of which these metals, or either of them, is a component part, by the dipping or any other process, and commercially known as tin plates, terneplates, and tag- gers tin, 1 cent per pound . PAR . 311 . No article not specially provided for which is wholly or partly manufactured from tin plate, terneplate, or sheet, plate, hoop, band, or scroll iron or steel, or of which such tin plate, terne- plate, sheet, plate, hoop, band, or scroll iron or steel shall be the material of chief value, shall be subject to a lower rate of duty tha n that impo sed on the tin pla te, terneplate, or sheet, plate, ho op, band, or scroll iron or steel from which it is made, or of which it shall be the component thereof of chief value . P A R . 312 . Beams, girders, joists, angles, channels, car-truck chan- nels, tees, columns and posts, or parts or sections of columns and posts, and deck and bulb beams, together with all other structural shapes of iron or steel, not assembled, manufactured or advanced beyond hammering, rolling, or casting, one-fifth of 1 cent per pound
any of the foregoing machined, drilled, punched, assembled, fitted, fabricated for use, or otherwise advanced beyond hammering, roll- ing, or casting, 20 per centum ad valorem ; sashes and frames of iron
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