We offer more than 40 kinds of Blowout Preventers with pressure ranging from 500 psi to 15000 psi and diameter from 7 -1/16 to 29-1/2 and cable BOP, non-kill BOP diverter, rotating BP and so on. Furthermore, we can develop and manufacture other kinds of BOP on customers request. 
The blowout preventers are designed and manufactured by absorbing the advantages of the world famous BOP manufactures in structural design. It complies with the technical requirements of well control in drilling, workover and oil testing.

There are 3 designs for Annular BOP. A1, A2 and D.

Source :- http://www.rigmanufacturer.com/bop.html

RM Holding BV

RigManufacturer manufactures and refurbishes oil field equipment for companies all over the world including the US, Norway, UAE and much more. We are one of the biggest suppliers of oil field equipment in de world. The company was established in 1985 by Kian Kianersi and focused on buying and selling used equipment and machinery. We have sold equipment in diverse branches such as the Plastic-, Textile, Chemical- and the Petrochemical industry. It wasn’t until 1996 that Kian Kianersi decided to go into drilling. Later on, he started a consolatory service, giving advice to small drilling companies all around the world.