When two businesses form a sales contract, certain terms will be implied into the contract by statute unless they’re specifically excluded by the terms of the contract (ie they will be automatically considered to be included in the contract without needing to actually be written into it). Exclusion of such terms is not always allowed.
Examples of such implied terms are those that entitle a customer to expect that the goods provided:
correspond with any descriptions of the goods they were given by the seller
are of satisfactory quality (ie safe, in working order, and free from defects)
are fit for purpose (ie they do what they are meant to do)
correspond with any samples supplied
Excluding these terms from business-to-business contracts is easier than excluding them from contracts with consumers. However, any exclusion, even in a business-to-business contract, must be reasonable to be valid. For example, an exclusion of the term requiring that goods are of satisfactory quality must be reasonable or it will not be enforceable. Note that there is an absolute ban on excluding or restricting liability for death or personal injury resulting from negligence.
For more information, read Limitation of liability clauses. If you're ever unsure which Terms and Conditions can be excluded from your business-to-business contracts, Ask a lawyer for assistance.