Shell scheme system, which also named as standard system, original from Europe at end of 1960s, a few types with groove sizes from 4.3mm-8.5mm all boomed at that period. Octanorm created 4.3mm groove system. Some other players stick to 8.5mm groove system and other sizes. With more advantages, 4.3mm groove finally share larger market.

Now days 4.3mm groove system is adopted by most of players worldwide. Less weight, more accessories to do more display purpose, most important, most of tradeshow contractors use 4.3mm groove system which make design and building more easier for international projects.

Our 4.3mm groove products all stick to DIN standard, with good machine and talented staff, we offer high quality but low cost material to the market.