The patented welding technology to keep high reliability. In the meantime, different process be selected per the working conditions, like brazing, interference, epoxy resin bonding and other processes. Surface modification welding alloy process can be provided as well.

➤ The stem range covers 1/2 inch to 5 inch size specifications

Rich alloy grades, alloy steel grades, mature surface treatment technology to cope with a variety of complex working conditions, product standards meet the national standard, American standard and other related standards, can be customized according to customer requirements.

➤ Choke bean range covers 2/64-256/64 and corresponding metric size specifications