Isotank Central, serving in not only tank leasing but also tanks maintenance and repair. Representing SUNPASS, one of the most prefered manufacturers, we can offer you the best quality with the best price.

SUNPASS sealing technology (Zhejiang) Co.,Ltd. is wholly-owned subsidiary company of Teng long Seal­ing Group. Tenglong Sealing, since 1979, is a professional manufacturer of industrial sealing and thermal insulation products, who enjoys a widespread reputation at home and abroad. Tenglong products are widely applied in chemical, oil and gas, electric power, smelting, mining, shipbuilding, paper-making, food and machinery industries