Sand Control Screen Downhole Tools and Service, Icd/Aicd Water Control Screen manufacturer / supplier in China, offering Anti-Liquid-Lock Seal Bore LTC B x P Connection Bore 4-1/2″, Anti-Liquid-Lock Seal Bore LTC B x P Connection Bore 5,000psi, Anti-Liquid-Lock Seal Bore LTC B x P Connection Bore 0.5MPa and so on.