is that any good for using springer fork ?
wanted to use one of this cause of the look but mostly found pic on beach bike or cruiser ... this fork not suitable for Roady or vintages frame ?
thanks

You sort of answered your own question. First of all most of these were made for 26" or smaller wheels, they may not accept a brake, and the diameter of the steerer tube may be such that a headset for a road bike may not fit. Lastly these are designed for a much more relaxed geometry so there may be some handling issues.

A little searching on ebay may turn up an inexpensive suspension fork.... but then again you also run into issues in changing the geometry.

If you want a suspension fork on your road bike, see if you can find a Rockshox Ruby. They were made especially for the Paris-Roubaix race. Gilbert Duclos-Lasalle won with them. Twice, IIRC.

Some of these (like the one genuine Schwinn I have listed in the for sale area) are quite good, nice tight joints and good geometry. Some, like the cheap, Chinese repro that I have on my daughter's bike (it will be in the for sale area soon) have loose joints and aren't very simetrical. As long as the headtube length is right (kinda hard to change on these, as opposed to a regular fork) it sill fit. They're usually made for balloon tires and will look fat with a skinny tire in them.
For off road riding, they're great. For on road riding, they kinda get bouncy, like the same bounce as your cadence. That's why I'm selling mine. I don't get off road much any more.

cause recently purchase miyata runner frame (90' with 26" wheel MTB) , was thinking adding this made it look nicer
very hard to find cromo/steel MTB rigid fork over here (reasonable condition), so was looking for easier way out (first timer owning n building vintages bicycle) .....

thanks guy

Over where? will a used do? what dimensions do you need? post in the for sale thread and if you have gear to trade the ISO/trade thread.