CTC provides professional inspection and testing services in the field of metal decorative materials. Its testing scope covers the performance, safety, and compliance evaluation of various metal decorative materials, supporting quality assurance for building decoration and renovation projects. Specific testing capabilities cover ferrous and non-ferrous metals used in applications such as doors and windows, decorative panels, hardware accessories, and public building facades. Through advanced testing equipment and a professional team (including chemical analysis, mechanical property testing, metallographic analysis, etc.), CTC ensures that materials comply with national standards and international specifications, serving multiple sectors including construction engineering, rail transit, and new energy.
Aluminum-Plastic Composite Panels
Aluminum Veneer Panels
Ceiling Panels
Integrated Products
Extruded Profiles
Steel Products (Steel Plates, Bolts, etc.)
Aluminum and Aluminum Alloy Materials
Aluminum Honeycomb Panels and Corrugated Panels
Fences, Guardrails, and Handrails
Welding Wires and Electrodes
Copper Alloy Products
Zinc Alloy Products
Others
C, S
Si, Mn, P, Cr, Ni, Cu, etc.
Sb, As, Ba, Be, Bi, B, Cd, Ca, Ce, etc.
Pb, Fe, Bi, Sb, As, Sn, Ni, Zn, P, S, Mn, Si, Cr, Al, Ag, etc.
H, O, N
Aluminum-Plastic Composite Panels
GB/T 17748: Aluminum-plastic composite panels for curtain walls
GB/T 22412: Aluminum-plastic composite panels for ordinary decoration
JC/T 2376: Lightweight foamed aluminum-plastic composite panels for decoration
JG/T 373: Plastic-aluminum laminated panels
JC/T 2183: Copper-plastic composite panels
YS/T 432: Aluminum strips for aluminum-plastic composite panels
Aluminum Veneer Panels
GB/T 23443: Aluminum veneer panels for building decoration
AAMA 2603: Voluntary specification for pigmented organic coatings on aluminum extrusions and panels
AAMA 2604: Voluntary specification for high performance organic coatings on aluminum extrusions and panels
AAMA 2605: Voluntary specification for superior performing organic coatings on aluminum extrusions and panels
JC/T 2438: Single-coated fluorocarbon aluminum panels (strips) for building decoration
JC/T 2439: Porcelain-coated aluminum panels for building decoration
JG/T 331: Fluorocarbon aluminum veneer products for curtain walls
YS/T 429.2: Aluminum panels for curtain walls — Part 2: Aluminum veneer panels with organic polymer coating
Ceiling Panels
GB/T 23444: Metal and metal composite ceiling panels
YS/T 690: Aluminum and aluminum alloy sheets and strips for ceiling
GB/T 37256: General technical requirements for grilles for outdoor building
QB/T 1561: Metal ceiling
Integrated Products
JG/T 413: Integrated ceiling for building
T/ZZB 0148: Integrated ceiling
T/CADBM 4: Metal integrated wall panel
JG/T 405: Finished stairs for residential interior use
JG/T 545: Bathroom partition components
JG/T 533: Technical requirements for prefabricated wall panels in kitchens and bathrooms
Extruded Profiles
GB/T 5237.1: Wrought aluminium alloy extruded profiles for architecture — Part 1: Mill finished profiles
GB/T 5237.2: Wrought aluminium alloy extruded profiles for architecture — Part 2: Anodized profiles
GB/T 5237.3: Wrought aluminium alloy extruded profiles for architecture — Part 3: Electrodeposited coating profiles
GB/T 5237.4: Wrought aluminium alloy extruded profiles for architecture — Part 4: Powder coating profiles
GB/T 5237.5: Wrought aluminium alloy extruded profiles for architecture — Part 5: Liquid painting profiles
GB/T 5237.6: Wrought aluminium alloy extruded profiles for architecture — Part 6: Thermal barrier profiles
GB/T 30872: Acrylic-coated aluminium alloy extruded profiles for architecture
YS/T 773: Aluminum alloy extruded profiles for solar cell frames
GB/T 14846: Aluminium and aluminium alloy extruded profiles — Tolerances on dimensions and form
GB/T 6892: Aluminium and aluminium alloy extruded profiles for commercial use
JG/T 490: General technical requirements for supports of solar photovoltaic system
GB/T 23615.1: Auxiliary materials for aluminium alloy extruded profiles for architecture — Part 1: Polyamide thermal barrier strips
Steel Products
GB/T 12754: Prepainted steel sheet and strip
GB/T 2518: Continuous hot-dip zinc-coated steel sheet and strip
GB/T 11253: Cold-rolled sheets and strips of carbon structural steel
GB/T 14978: Continuous hot-dip aluminium-zinc alloy coated steel sheet and strip
GB/T 33275: Steel expanded metal
GB/T 12755: Profiled steel sheet for building
JG/T 234: Enamel steel plate for building decoration
GB/T 18592: Metallic coating — Specification for hot-dipped aluminium coatings on iron and steel articles
GB/T 5267.3: Fasteners — Hot dip galvanized coatings
GB/T 23639: Energy-saving and corrosion-resistant steel cable tray
GB/T 18226: Technical specification for anti-corrosion of steel structure of highway engineering
JG/T 516: Color-coated steel plate for building decoration
GB/T 36399: Continuous hot-dip aluminum-silicon alloy coated steel sheet and strip
GB/T 3280: Cold rolled stainless steel plate, sheet and strip
Aluminum and Aluminum Alloy Materials
YS/T 431: Colour coated aluminium and aluminium alloy plates and strips
YS/T 490: Embossed aluminium and aluminium alloy plates and strips
GB/T 32468: Copper-clad aluminum plates and strips
YS/T 566: Bimetal strips
GB/T 4438: Aluminium and aluminium alloy corrugated sheets
GB/T 6891: Aluminium and aluminium alloy profiled sheets
GB/T 18847: Polyvinyl chloride (PVC) coated metal sheets
JG/T 359: Foamed aluminum panels for building
YS/T 429.1: Aluminum panels for curtain walls — Part 1: Panel base
GB/T 31976: Aluminum alloy sheets with composite through-hole sound-absorbing performance
GB/T 8013.1: Anodic oxide and organic polymer coatings on aluminum and aluminum alloys — Part 1: Anodic oxide coatings
GB/T 8013.2: Anodic oxide and organic polymer coatings on aluminum and aluminum alloys — Part 2: Anodic oxide composite coatings
GB/T 8013.3: Anodic oxide and organic polymer coatings on aluminum and aluminum alloys — Part 3: Organic polymer spray coatings
Aluminum Honeycomb Panels and Corrugated Panels
JC/T 2113: Aluminum honeycomb composite panels for ordinary decoration
JG/T 334: Aluminum honeycomb composite panels for exterior walls
JG/T 328: Stone honeycomb composite panels for building decoration
HB 5443: Specification for durable aluminum honeycomb core materials for sandwich structures
JC/T 2187: Aluminum composite panels with aluminum corrugated core
Fences, Guardrails, and Handrails
GB/T 26941.1: Fences — Part 1: General rules
GB/T 26941.2: Fences — Part 2: Posts, braces and gates
GB/T 26941.3: Fences — Part 3: Welded mesh
GB/T 26941.4: Fences — Part 4: Barbed wire mesh
GB/T 26941.5: Fences — Part 5: Woven mesh
GB/T 26941.6: Fences — Part 6: Expanded metal mesh
JC/T 2539: Metal fences
JG/T 558: Stair railings and handrails
JG/T 522: Aluminum alloy formwork
CJ/T 563: Technical conditions for anti-corrosion iron art guardrails for municipal and building applications
JG/T 342: Glass and metal guardrails for building
Others
GB/T 2040: Copper and copper alloy sheets
GB/T 2059: Copper and copper alloy strips
GB/T 5187: Copper and copper alloy foils
JG/T 360: Metal decorative insulation panels
JG/T 402: Heat reflective metal roof panels
JC/T 2470: Coated stone metal roofing tiles
GB/T 8546: Titanium-stainless steel composite plates
Steel and Alloys
Steel plates, steel bars, bolts, welding wires, etc.: GB/T 4336-2016/XG1-2017, GB/T 20123-2006, GB/T 20125-2006, GB/T 11170-2008, SN/T 2718-2010, GB/T 223.82-2018, GB/T 20124-2006, GB/T 11261-2006, etc.
Aluminum and Aluminum Alloys
Aluminum profiles, aluminum alloy hangers, aluminum veneer panels: GB/T 7999-2015, GB/T 20975.5-2020, GB/T 20975.25-2020, GB/T 20975.26-2013, etc.
Copper and Copper Alloys
Brass valves, hardware accessories, electrical parts: YS/T 482-2022, GB/T 5121.27-2008, YS/T 483-2022, GB/T 5121.8-2008, GB/T 5121.4-2008, etc.
Zinc and Zinc Alloys
Zinc-based tools, furniture, doors and windows, coatings: GB/T 12689.12-2004
Others
Zinc-based, aluminum-based, and aluminum-zinc-based coatings: GB/T 24514-2009, SN/T 2951-2011
Holds national-level qualifications such as China Metrology Accreditation (CMA) and China National Accreditation Service for Conformity Assessment (CNAS).
Test reports have legal effect, providing critical technical support for product quality disputes.
Equipped with multiple advanced instruments from both domestic and international sources, and has built a testing team comprising doctors, masters, and technical staff with intermediate and senior professional titles.
Nearly 20 years of focused experience in metal material testing, consistently serving fields such as construction engineering and rail transit.