Shanghai Minglan Chemicals Co., Ltd. is based in China and lists diesel engine oil additives on Global Trade Plaza. The company offers the T6062 CH-4 CI-4 Diesel Engine Oil Additive, a brown viscous liquid formulated for blending into finished lubricants meeting API CH-4 and CI-4 performance levels. The additive package is supplied in 200-liter metal drums, with packaging also available according to customer requirements. Technical specifications include reported values for density, kinematic viscosity at 100°C, flash point (COC), total base number, and elemental content of zinc, calcium, phosphorus, and nitrogen, each tested under referenced GB/T, SH/T, and ASTM methods.