... .fit for: all kinds of class BL310 stainless steel Glass Curtain Wall spider 1.Material: 201,301,304,316; 2.Finishing: ... 4arms,3arms,2arms,1arms (includes long and short)5.Spider types: regular spider, handrail usage spider, fin spiderYou could order the whole set of ... business cooperation8.we have large store for big order of glass curtain wall spider9.OEM is acceptable model main material ...