December 13, 2018 - Calandra Group, LLC and ABC Technology Group USA have announced the formation of a new Joint Venture company, Turnstone Industrial Solutions, LLC. Turnstone Industrial Solutions will manufacture non-metal structural support systems, flexible ducting and semi-rigid polymer tubing products for mine and tunnel ventilation, industrial flexible ducting for temperature and environmental control, and rapidly-deployable air-stop seals and barriers. ABC Technology Group’s vertically-integrated manufacturing experience of high- quality ventilation products, along with the support of Jennmar and Jennchems leading sales and service network, will offer a comprehensive ventilation product line and application solutions throughout the USA.

Some of the products manufactured and sold by Turnstone Industrial Solutions:

PILLAR BAGS: A range of rapidly deployable cement containment bags used to provide load bearing roof support. Brand: J-CRIB®.

FLEXLINE PERFORMANCE DUCTING®: A range of flexible ducting and accessories for supply, return and exhaust air applications using Hi-Strength fabric material and construction, low-leakage couplings and safe installation solutions. Brands: MineVent®, TwinDuct™, MineDuct®.

HARDLINE PERFORMANCE DUCTING®: A range of low-leakage, low -resistance semi-rigid polymer tubing and accessories for supply, return and exhaust air applications. Brands: HardLine-MAX™, HardLine-COAL™, HardLine-Oval™.

INFLATABLE AIRSTOP: Inflatable and rapidly deployable underground ventilation control, air-stopping and sealing systems and overhead safety solutions. Brands: AirStop™, AirStop-EPASS™, AirStop-OPS™.