440	GLASS AND GLAZING SUPPLIES
44004  *	Blocks, Glass
44005  *	Bullet Proof Glass
44007  *	Desk Felts and Pads
44010  *	Crystal Glass
44012  *	Factrolite Glass
44014  *	Florentine Glass
44021  *	Glass Cutting Machines
44028  *	Glass Cutting Tables
44030  *	Glass Tinting Film and Supplies (Including Glazing Compounds)
44035  *	Glaziers' Clips and Points
44042  *	Heat-Tempered Glass, Fully Tempered
44049  *	Heat-Tempered Glass, Partially Tempered
44050  *	Mirror Glass
44051  *	Obscure Glass (Not Florentine)
44056  *	Plate Glass
44058  *	Plexiglass Glass
44060  *	Pyrex Glass
44062  *	Recycled Glass Products
44063  *	Safety Glass, Laminated
44070  *	Stripping (For Desk Top Glass)
44073  *	Thermo Glass (Insulated)
44077  *	Window Glass
44084  *	Wire Glass