5.1.2 section inside of the nipple must not contain any object included right on key and must not have holes, the liquid flow out.The tests done by the monitor.
5.1.2 The interior of the rubber nipple must not have any material contained on the Address and Interfaces have no drainage holes to pass out the test made by check.
5.1.2 the inner part of the rubber nipples have no objects are contained, and the address page keys have no รูให้ liquid flow out test made by checking.