We are planning to produce 7. 5 liters portable gas cylinder. We are looking to big manufacturer in Italy, Thailand, India to supply us with LPG valve. Valve must pass the following certificated tests: 1-Durability test: open & close 15000 times, and successful leakage test. 2-Rubber Parts: Durability test: tension, elongation, and hardness. 3-Durability test for non-metallic Parts. 4-Shock test at 28 Kgm shock. 5-Leakage test at 30 bar.