About Us

behind the scenes at beyond

Who we are

Mastelf, is one of the laboratory supplies based in China, which is a manufacturing and trade combo that specializes in HPLC Vials, Headspace Vials, Syringe Filter and Centrifuge Tube etc.

Naturally, when the chance arose in 2011, Kalvin and Guo established a deserving little firm in Hangzhou, China, and called it Mastelf, which means “master of oneself.” Mr. Kalvin’s business expertise and Mr. Guo’s company image and marketing talents were the inspiration for Mastelf.

After ten years of growth, Mastelf has become the leading supplier, offers standard products with high quality and reasonable prices. Also, we have a highly qualified scientific management team, a group of brilliant individuals who are enthusiastic about science and sales and have many years of expertise in related industries.

What we focus

Our customers range from pharmaceutical, life science, chemistry, technology, food processing firms to name a few. Other companies include colleges and research institutions such as universities, government agencies, environmental test facilities with access to over 50 countries and 200 items available.

Over the years, with our dedication to product quality, cost competitiveness, and customer service, Mastelf Technologies has developed numerous important business connections with major research, government, and environmental test institutes all around the world including Major Asia 40%, Europe 30%, and 30% of South America.

We set out to accomplish something truly remarkable with our company, not just for Mastelf, but also for our clients.

Welcome aboard and let’s make a big splash together!

OEM Available

We have a team who can turn your idea into the perfect product. If you want to stay on top of trends, then it’s best that we make our own designs as close as possible for quality assurance and consistency purposes!

Quality assurance

Quality assurance is a critical step in the production of any good or service. Our QA department will be checking every unit that leaves our factory for quality purposes, ensuring you’re getting what we say and more!

Free Sample available

It’s natural to be skeptical of something you’ve never seen before. So we offer free samples so that your worries are put at ease.

7/24 reach out

Our team will always be available to help you. If there’s anything we can do for you just give us a call and our team is more than happy to assist.

Your Dream. Our Mission.

We Believe In Hard Work And Dedication

We believe in hard work and dedication. We invest all of our efforts into making sure the client’s needs are met.

We take care of what matters most to you by providing personalized attention towards every customer, no matter how large or small their situation may be.

Meet our amazing team

The Faces Behind Our Succes

We Couldn’t Do It Without Them

Kalvin Chen

Founder & Collaborator

Jona Zhao

General Manager Assistant

Blue Lee

Accounting Manager

Meet Our Clients

We Work For Them

Do you want to grow your business?

we can do it together