A party may serve on another party a request to produce and permit inspecting and copying, photographing, testing, and sampling of documents, papers, books, objects, tangible things, etc.; or entry onto land for the purpose of inspecting, surveying, testing, etc. A party served with such a request must serve a written response within 30 days. If the response is an objection or refusal to comply, the party submitting the request may move for an order directing production or entry.