1. High moisture content in raw materials (the most common reason)Phenomenon: Bubbles are small and numerous, evenly distributed, and the surface of the product may appear white or rough.Reason: PVC has strong moisture absorption. If not pre dried (usually requiring drying at 80-90 ℃ for 1-2 hours),...

We specialize in manufacturing all moulds of pipe fitting series: pvc drainage pipe fitting mould, ppr cold and hot water pipe fitting mould, PE pipe fitting mould, collapsible pipe fitting mould, plastic valve mould, cpvc pipe fitting mould, electrical conduit fitting mould and agricultural, irrigation series mould, etc. Each set of mould is customized for customers.

Four Key Areas That PVC Valve Importers Should Focus On1. Compliance with standards and certifications: ensuring compliance and safetyThis is the cornerstone of supplier evaluation, determining whether the product can legally and safely enter the target market.Product execution standards: Firstly, v...

This is a fundamental solution to the problem of heat conduction, and the key is to choose materials with better thermal conductivity for the pipe fittings.Using high thermal conductivity materials: For scenarios that require rapid heat absorption and transfer, such as computer CPU/GPU heat dissipat...

key performanceSpecific performance and dataCore advantages brought byExcellent chemical inertnessCapable of withstanding corrosion from strong acids (such as hydrofluoric acid), strong bases, strong oxidants, and almost all organic solventsExtreme corrosion resistance ensures that the pipeline itse...

The upgrading of the whole chain of services under the structural change has entered 2026, and the global pipe and pipeline industry is in the midst of a profound structural change.Driven by the triple drive of infrastructure upgrading, the popularization of green building standards, and the accelerated penetration of intelligent manufacturing technology, the demand pattern of the PPR, PE, and PVC pipe fitting mould markets is undergoing fundamental adjustments.This field has completely said goodbye to the traditional extensive manufacturing stage, and has comprehensively moved towards a new era of high precision, fast iteration, complex structure forming and full life cycle services.