Corrosion Resistant Grill — Tuni Extension
Safety, aesthetics, and long-term value — these three pillars define every GCM invisible grill installation in Tuni Extension.
As Rajahmundry-Kakinada Corridor's most trusted manufacturer of anti-rust 316 Grade Stainless Steel invisible grills,
GCM Invisible Grills serves families, apartment complexes, villas, and commercial buildings across Tuni Extension
with a product engineered to last a lifetime.
Unlike traditional iron grills that obstruct views and create a "prison-like" aesthetic, GCM's invisible grill system
uses high-tensile 0.8mm to 2mm SS 316 wire tensioned at precise intervals to create an
invisible barrier with 200kg+ load capacity per panel. Children and pets remain safe while your
balcony retains its full unobstructed view — a critical feature for high-rise apartments in Tuni Extension.
GCM is a direct manufacturer — meaning you buy at factory price with no distributor markup.
Our pricing in Tuni Extension starts from ₹120 per sq ft for 304 Grade and ₹160–200 per sq ft
for 316 Marine Grade. Free survey, no-pressure quote. Call 9912399224 today.
Choosing the Right Grade for Tuni Extension
GCM supplies two wire grades for invisible grills in Tuni Extension. The right choice depends on your floor level,
proximity to water bodies, and long-term budget:
| Specification | 304 Grade (Standard) | 316 Marine Grade (Best) |
|---|
| Corrosion Resistance | Good | Excellent (Marine-rated) |
| Alloy | 18% Cr, 8% Ni | 16% Cr, 10% Ni, 2% Mo |
| Salt-Air Resistance | Moderate | Outstanding |
| Ideal For | Lower floors, dry climate | All floors, humid/coastal areas |
| Price per sq ft in Tuni Extension | ₹120–140 | ₹160–200 |
| Expected Lifespan | 10–12 years | 20+ years |
| Warranty | 3 years | 5 years |
For apartments above the 5th floor and any location near lakes, rivers, or coastal areas in Tuni Extension,
GCM strongly recommends 316 Marine Grade SS for long-term value and zero-maintenance performance.
