Lead exudation prevention method and the tap metallic parts of lead removal method and the tap metallic parts and the lead content copper alloy product of the plated product of the lead content copper alloy make which has the tubular section

摘要

It plays the fine view which the liquation quantity of the lead to the water decreases from the inside perimeter aspect of the tubular section, is superior, it offers the lead removal method of being possible at the same time to obtain the production possible plated product cheaply. It has with the plated process S2 which administers nickel chrome plated layer 20 to the peripheral aspect of work 50a after head-end process S1 and head-end process S1 which prepare in work 50of a the lead content copper alloy make with the tubular section 10 which passes through the water. After plated process S2, the lead removal process S3 which removes the lead from the inside perimeter aspect of tubular section 10 is had.