The product to be introduced this time by us, at Histen,
is the One Push Groove Coupling, which is our new product. 
Because, in the case like the product of another company now,
regarding the product that had been in the market previously, the gasket internal diameter is much bigger than the pipe outer diameter, 
in the case of having assembled with the bolts and the nuts, against one’s will, due to the clamping forces of the bolts and the nuts,
there can be such a problem like the transformation of the gasket. 
Because, in the case like our company’s product, the inner diameter of the gasket had been designed on a nearly similar level that the outer diameter of the fitting, it had been designed with such a design so that, if the product is pushed in in a natural way, it becomes pressed in a natural way.  
It is a product of which the constructability had been heightened much more.