Blog
Two-Color Injection Molding Solution of Runhong Widely Adopted for Auto & Motorcycle Accessories
With rising demand for multi-material automotive plastic parts, Runhong expands its two-color (2K) injection molding service for automotive and motorcycle accessories. Leveraging over 32 years of experience in plastic molding, we produce integrated two-color molded parts combining rigid engineering plastic and soft-touch materials for vehicle switches, lamp housings and motorbike decorative components. The integrated two-shot molding process reduces extra assembly procedures, lowers overall production costs and improves product appearance & durability. Global buyers from Germany, Russia, Japan and South Korea choose Runhong as their reliable source manufacturer for two-color automotive plastic products.
Aug 04,2026
Runhong Improves Surface Finish Technology for Automotive Exterior Plastic Injection Components
High-class surface quality is essential for automotive exterior plastic products. Runhong optimizes mold polishing technology and injection molding parameters to achieve excellent surface finish for vehicle bumpers small accessories, lamp bases and exterior decorative plastic parts. Our internal quality inspection system prevents flow marks, sink marks and scratches on molded plastic pieces. As a source factory in Dongguan, we accept small-batch trial orders and large-volume mass production for global automotive component importers.
Aug 04,2026
Runhong Shares Advantages as One-Stop Source Manufacturer for Automotive Plastic Molds & Molding
Many overseas buyers are looking for integrated suppliers instead of separate mold factories and molding workshops. Founded in 1996 in Dongguan, Runhong integrates R&D, mold manufacturing, injection molding, printing and assembly. For automotive plastic projects, customers only need to communicate with one team throughout the whole project. Our 16 engineering teams cover every technical link to avoid communication barriers between different manufacturers. We specialize in automotive & motorcycle accessory molds, precision parts, two-color injection molding and custom plastic component manufacturing.
Aug 04,2026
Runhong Supports Global Customers on New Vehicle Project Prototyping & Mold Trial Production
Facing shorter new vehicle development cycles, Runhong provides fast prototype verification and mold trial services for global automotive clients. We shorten lead time for automotive plastic mold trial runs and optimize molds iteratively according to sample test feedback. Whether you develop new energy vehicle interior parts, traditional automobile functional components or motorcycle plastic accessories, our project engineers arrange customized development schedules flexibly. With over 32 years of manufacturing experience, Runhong strives to support automotive partners to accelerate new product launch to global markets.
Aug 04,2026
Runhong’s Insert Injection Molding Technology Applied to Automotive Electronic Plastic Housings
Insert injection molding technology developed by Runhong has been widely used in automotive electronic plastic housings. Combining metal inserts and engineering plastics in one injection cycle, these components feature stronger structural stability for automotive sensors, control module casings and wiring protection shells. Our IE assembly engineers and procurement team coordinate closely to realize streamlined production. With mature experience in precision mold making, Runhong becomes a preferred partner for many automotive electronics suppliers.
Aug 04,2026
Global Cooperation Expands: Runhong Automotive Plastic Products Export to More Overseas Markets
Runhong continues expanding overseas market layout for automotive and motorcycle plastic molded products. Our automotive injection molds and finished plastic components are now exported to the United States, Canada, Brazil, Mexico, Germany, Spain, Italy, Russia, Iran, Japan, South Korea and other countries and regions. Supported by cross-functional engineering teams, we efficiently respond to customized demands from different regional automotive standards. We welcome global automotive buyers to contact us for mold development and injection molding component cooperation.
Aug 04,2026
