SHANGHAI JEFA MACHINERY CO.,LTD
JEFA is an API 6A and 16C certified professional wellhead equipment and valve manufacturer .JEFA has a modern production workshop of heat treatment and machining production covering 100,000 squarefeet and a team of 78 dedicated professionals.90% of products are exported to USA,Canada,Argentina,UK etc.We take pride in supplying quality products on time and full in compliance with requirements.