Profile: Tip-Top International Development Ltd. supplies equipment, system and service for oil and gas, refinery & petrochemical and offshore industries. Our refinery and petrochemical product includes orifice plate, clamp, connector, SPO flange, optima subsea connector and slide valve. Our main products are tabular goods as casing, tubing, pipeline & fittings, sucker rod, drill pipe, pumping unit, down-hole tools, logging instrument, reactor, vessel and oilfield chemicals. We are accredited with ISO 9001 certification.