Panam Engineers Pvt. Ltd. Manufactures Hex Bar Stock Body Construction Needle Valves, H. B. Series. Panam Engineers Pvt. Ltd. Is an ISO 9001:2000 certified company. The Hex Bar Stock Body Construction Needle Valves feature Straight or Angle Pattern with optional Panel Mounting. These valves are provided with Stellited or Metal to Metal seats. These valves have different end connections including Male or Female N. P. T., single or twin ferrule tube fittings and I. S. O., DIN and JIS tapered pipe ends.