The K40 is an oil and gas drilling rig produced by Wykorsky in the 1960s. The equipment used advanced technology and engineering to meet the needs of the oil and gas industry at the time. The K40 equipment was widely used in drilling and exploration activities at the time and achieved great success. However, as the technology continued to develop and update, the K40 equipment was gradually replaced by more advanced equipment, and production gradually ceased. Therefore, the production year of the K40 equipment can be determined as the 1960s.
The year 2021
Red rice K40 mobile phone its production in China, China Kunshan, Xiamen, Guangdong Shanghai have production. The RedmiK40 is a smartphone from Redmi that was released on February 25, 2021. On the front is a 6.67-inch screen with a display resolution of 2400x1080 pixels. Equipped with Snapdragon 870 processor, built-in 4520mAh battery, X-axis motor and Dolby Panoramic dual speakers, support NFC, infrared and 33W fast charge.