China Testing & Certification International Group Co., Ltd. (CTC, Stock Code 603060) originated from the testing and certification business of China Building Materials Academy in the 1950s. After 70 years of unremitting efforts and persistent pursuit, the company has formed five business categories: detection and testing, certification and evaluation, testing instruments and intelligent manufacturing, measurement and calibration, scientific research and technical services, committed to providing customers with technical services and comprehensive solutions of detection and testing, certification and evaluation, appraisal, consultation, training, and instruments and equipment in fields of quality, environmental protection, green, safety, health, and energy conservation.

Glass Fiber Reinforced Plastic Mortar Pipes
Glass Fiber Reinforced Plastic Continuous Winding Mortar Pipes
Appearance Quality
Outer Diameter
Outer Diameter of Joint
Length
Wall Thickness
Liner Layer Thickness
Pipe End Face Perpendicularity
Barcol Hardness
Mass Percentage of Wall Components
Insoluble Resin Content
Initial Ring Stiffness
Initial Hoop Tensile Strength
Initial Axial Tensile Strength
Initial Flexibility
Initial Hoop Flexural Strength
Hydrostatic Leakage
Long-Term Flexural Performance
Glass Fiber Reinforced Plastic Mortar Pipes — GB/T 21238-2016
Glass Fiber Reinforced Plastic Continuous Winding Mortar Pipes — JC/T 2538-2019
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