... Application:oilfield equipment WP:High pressure API well head parts High-pressure union, importing international ... ANSI Standard and the technology indexes conform to API Spec 6A, the product adopts some end ... Machinery Co.,Ltd specialize in API 6A products as following:1) Wellheads (casing/tubing head, crosses ,flange adapter,etc) ... etc)3) Fitting(union, manifold,elbows), bop. API well head parts