Match various models of automatic samplers such as Agilent and Waters. Sample bottles are available in transparent, brown, transparent with scale markings, and brown with scale markings for selection. The bottle mouth design ensures consistent sealing, high-precision processing technology, strict quality control, and guarantees consistency between batches. The uniform flat bottom ensures compatibility with the inner tube, and the ceramic writing plate is easy to mark. A dust-free purification room of 100000 level ensures the cleanliness of the product.