Bengbu Yongfeng Dyestuff Chemical Co., Ltd
Bengbu Yongyan Dyestuff Chemical Co., Ltd. is a national high-tech enterprise that has been producing sulfur dyes since 1968 and has a production history of over 40 years. We specialize in the production and operation of a series of sulfurized varieg
Introduction
Bengbu Yongyan Dyestuff Chemical Co., Ltd. is a national high-tech enterprise that has been producing sulfur dyes since 1968 and has a production history of over 40 years. We specialize in the production and operation of a series of sulfurized variegated dyes, including 6

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Welch has provided quality vacuum pumps for laboratory, industrial and educational applications for over a century. Today, Welch is a leading manufacturer of vacuum pump products for chemical and biological laboratories, high vacuum manufacturing, an
Service laboratory
Specialised in molecular and microbiology
Founded in 1998
Public limited company, financially independent
ISO 17025 accredited
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