What does shallow battery SY KR mean?

High-performance sealed maintenance-free battery series (MF-SY) and high-performance sealed maintenance-free imported battery series (MF-SY).

Tang Qian Battery (Shunde) Co., Ltd. was established on February, 2002 1 day, and its legal representative is Yiming Yamaguchi. The company's main business scope is: research and development, production and sales of high-capacity fully sealed maintenance-free lead-acid batteries and their parts, as well as after-sales service of the above products; Engaged in the wholesale and import and export business of batteries, battery raw materials and related spare parts, battery molds and battery production equipment (it shall be handled in accordance with the relevant provisions of the state if it involves the management of industry licenses, and the import and export of the above commodities does not involve state-owned trade, import and export quota licenses, export quota bidding, export licenses and other special management commodities).