C
SECTION C — CHEMISTRY AND METALLURGY
CHEMISTRY
C03
GLASS
;
MINERAL AND SLAG WOOL
C03B
MANUFACTURE, SHAPING, AND SUPPLEMENTARY PROCESSES
C03C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
;
SURFACE TREATMENT OF GLASS
;
JOINING GLASS TO GLASS OR OTHER MATERIALS