At SUMA TOOL, we develop, produce, and market plumbing tools and electrical tools, which are used in the plumbing, heating, refrigeration, gas, and electrical installation industries.
We are committed to continuous innovation and modern technology to make high-quality tools and accessories.
SUMA TOOL’s manufacturing facilities and headquarters are located in Zhejiang and Nanjing, China.
When you choose a plumbing tool manufacturer, you want more than just an assembler. You need a partner who manages every aspect, from sourcing raw materials to testing the finished product.
Professional crimping tools are the game-changer for bathroom plumbing. They deliver speed in tight spaces, leak-proof reliability, and flame-free safety. Using pro-grade manual or hydraulic crimpers means faster installs, less fatigue, and cleaner jobs.
Whether you’re an engineer, technician, or just a curious buyer — choosing the right crimping pliers is key.Sumatool crimping pliers were your non-negotiables. You deserve tools that make your job easier!

SUMA TOOL design and manufacture everything in-house. We operate the whole value chain from start to finish, We are not an assembler, This is different from our competitors. We control every critical step in-house — from raw material, forging, machining, heat treatment, assembly to final testing.

SUMA TOOL work closely with our customers all around the world, listening to what their main pain problems are . Then we try to find a solution to make the tool designed for customers’ requests.

SUMA TOOL team has extensive experience, enabling us to provide superior technical support as well as continuous professional assistance.
We specialize in plumbing tools and electrical tools
for the plumbing, heating, HVAC, gas, and electrical installation industries.
JOSUM Prime Products Co., Ltd.
Your Trust Partner of Plumbing tools and Electrical tools.
We will contact you within 1 working day, please pay attention to the email with the suffix “@sumatool.com”.