About JOTAIN
Global special steel supply built around application-ready execution.
JOTAIN Special Steel is the global brand of Hangzhou Jiutian Materials Co., Ltd., founded in 1999 and headquartered in Hangzhou, China. The company supports overseas industrial buyers with alloy steel products, heat-treated bars, semi-finished products, and application-oriented supply routes.
Who We Are
JOTAIN Special Steel is the global brand of Hangzhou Jiutian Materials Co., Ltd.
Founded in 1999 and headquartered in Hangzhou, China, JOTAIN supports overseas industrial buyers with alloy steel round bars, heat-treated bars, bright processed bars, semi-finished products, and application-ready supply routes.
What we supply
Alloy and carbon steel bars for hydraulic rods, shafts, fasteners, grinding rods, heavy machinery, automotive steel parts, and general machinery.
Why private factories matter
JOTAIN's private processing factories help coordinate grade, delivery condition, heat treatment, peeling, grinding, inspection, packing, and shipment readiness.
How we support buyers
RFQ review connects grade, size, route, documents, packing, destination, and application before quotation.
Application Focus
Steel routes organized around real buyer applications.
JOTAIN reviews grade, process route, documents, packing, and destination around the part the buyer needs to produce.
42CrMo4, CK45, 40Cr, peeling, grinding, chrome plating, inspection, and export packing review.
42CrMo4, 40Cr, 34CrNiMo6, CK45, QT condition, machining allowance, UT on request, and traceability review.
42CrMo4, 35CrMo, 40Cr, QT route, pre-thread diameter, thread rolling, surface treatment, and document review.
65Mn and selected routes for rod diameter, fixed length, hardness target, straightness, end-face condition, and packing.
How We Work
RFQ review starts with the buyer's final use.
Application, grade or equivalent standard, diameter, length, quantity, condition, and destination.
Heat treatment, peeling, grinding, cutting, threading, chrome plating, inspection, and packing are reviewed as needed.
MTC, traceability, testing, inspection timing, labels, and third-party requests are clarified before quotation.
Bundle plan, product tags, surface protection, container loading needs, and shipping destination are connected to the order route.
RFQ
Talk to JOTAIN about your supply route.
Include delivery condition, processing requirement, destination port, testing requirements, and certificate expectations so the supply route can be reviewed clearly.