Nova: "It's ok if it's bigger than 1 cm (even bigger) and it doesn't break dry, just borrow tools (drawing yards). One disadvantage of the dry-breaking method is that the dry-breaking part will swell, and it will dry up in the future (big and small). We used to use the dry-breaking method to take the bend here, but now it is not necessary unless there is no other way. " Truth! Good words! To nova. Mr. Wang: handshake :handshake studied.