1. Standard: GB/T5224(China)ASTMA421(USA);BS 896(UN);
JIS G3536(Japan);AS/NZS4672(Australia);NBR-7483(Brazil);
EN10138(Europe);ISO934
2. Material: SWRH77B SWRH82B
3. Diameter: 3mm 4mm 4.8mm 5.0mm 5.1mm 6.0mm 6.25mm 7.0mm 7.8mm 8.0mm 9.0mm 9.5mm 10.0mm 11.0mm 12.0mm