PETROLEUM STORAGE TANK. GS Ali Associates is a leading manufacturer of field weld storage tanks utilized in the gas and oil industry. Our facility includes state-of-the-art equipment for burning, bending and rolling of both carbon steel and stainless steel materials. GS Ali Associates provides Turnkey Engineering Solutions to its valued clients from the sector of Power, Oil, Gas, Petrochemical and Industrial Sectors with a repute of successful timely completion of projects. GS Ali Associates are the Petroleum, Gas & Fuel Storage Tanks Manufacturers. GS Ali Associates struggling to be the best originator of its tank business in the oil industry of Pakistan, UAE, Qatar, KSA, USA, UK.