Cross-hatch is the name of the pattern created when you run a honing device on the inside of cylinder walls. This device consists of three pieces stone mounted in a spiderlike fashion so they exert pressure against the inside cylinder wall.
Once again, back to oil, and of course coming from me this is unrelated. Chinese restaurants often save some old oil to mix in with fresh oil when stir frying your food. This is a part of the wok flavor we so desire when we have a hankering for shrimp fried rice.