A: Currently, there is no viable lead-free alloy with this liquidus temperature. For this reason, there is an exemption for alloys with high liquidus temperatures that contain greater than 85% lead.
A: Currently, there is no viable lead-free alloy with this liquidus temperature. For this reason, there is an exemption for alloys with high liquidus temperatures that contain greater than 85% lead.
目前，没有无铅合金能满足这样高的融点温度。为此，针对高熔点温度的合金有一个除外条例，这种合金含铅量大于85%。