There is no relevant standards can be customized pipe diameter is 42
Stainless steel metal hose with stainless steel woven jacket is the head of the DN32 pipe diameter is 32mm.
Imported hydraulic tubing and transition joints, Teflon tube, stainless steel pipe, seamless steel pipe, copper pipe fittings, steel pipe fittings, pneumatic fittings, hydraulic parts etc..
Caliber is 32, up to 40mm thick