JB / T 9151.1-1999 Test methods fastener size and geometric precision bolts, screws, studs and nuts JB / T 9151.2-1999 Test methods fastener size and geometric precision wood screws JB / T 9151.3-1999 Fasteners test The method of size and geometric precision tapping screw JB / T 9151.4-1999 fastener size and geometrical precision test methods washer JB / T 9151.5-1999 fastener size and geometric precision test methods pins JB / T 9151.6-1999 Fasteners test The method of size and geometric accuracy rivet JB / T 9151.7-1999 Test methods fastener size and geometric precision ring JB / T 9151.1-1999 Test methods fastener size and geometric precision bolts, screws, studs and nuts 304 stainless steel screws, 316 stainless steel bolts, stainless steel studs, 304 stainless steel hose clamps, 316 screws, stainless steel cotter pin head screws, stainless steel slotted screw fastener SJ 2502-1984 Cross recessed pan head self tapping screws common thread tight SJ 2503-1984 Firmware common screw Cross recessed countersunk head tapping screw fastener SJ 2504-1984 Cross recessed oval head tapping screws common thread cylinder head fasteners SJ 2505-1984 waisted swimming screw nut fastener SJ 2506-1984 SJ 2507-1984 fasteners riveting round light hexagonal nut fastener SJ 2508-1984 special flat fine tooth nut fastener SJ 2509-1984 SJ 2510-1984 riveting nut fastener hand side washer 304 stainless steel screws Shijiazhuang stainless steel screws screws, 316 stainless steel hexagonal screws, stainless steel 304 stainless steel screws Shijiazhuang adapter ring, 304 stainless steel screws Shijiazhuang sales minus screw, stainless steel screw 316 stainless steel screws, 316 stainless steel blind rivets, stainless steel cotter pin stainless steel screws Shijiazhuang nuts, stainless steel screws Shijiazhuang, Jinan Road ground is provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) strong, credible, in Jinan, Shandong hardware accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinan Road ground into the brilliant and you work for a better future!