OTP- our competitive advantage 1) Top Wall - have national standards O-ring mold, including the commonly used American Standard AS568, JIS G / P standard, the successful C92, etc., and can produce 500mm at the O-ring, and No tooling costs. 2) Wall the top - with strong technical force and production capacity, Taiwan will provide you with top Wall-stop service, the quality is absolutely trustworthy. 3) Wall top - customers include industry sector: solenoid valves, oil valves, hydraulic cylinders, pneumatic cylinders, gear box, gear pumps, gear, food machinery, dyeing and finishing machinery, electronics, air conditioning, refrigeration, equipment, boilers, pressure tank, diaphragm pumps, vacuum pumps ...... 4) Wall top - to ensure timely quotations, production specifications, quality assurance, timely delivery. If you need technical or other aspects, we will top Wall arrived in your company related exchanges.