Specifications include, but are not limited to: The use of a brand name is for the purpose of describing the standard of quality, performance, and characteristics desired and is not intended to limit or restrict competition. Or equal submissions will not be rejected because of minor differences in design, construction, or features that do not affect the suitability of the product for its intended use. Burden of proof that the product is equal is on the bidder.; Forney MODEL# F-250-VFD / 250K Compression Machine for testing Portland Concrete Cement or equivalent. At the request of the agency, the vendor must provide evidence that they are an authorized distributor/re seller.; ITEM# TA-0173/SPACER 6.5" X 4" THICK STEEL BOTTOM (black) per DWG#10132 or equivalent. At the request of the agency, the vendor must provide evidence that they are an authorized distributor/re seller.