... in China,we cansupply straight seam steel pipe,spiral steel pipe,seamless steel pipe,elbow, bend,end cap,flange,tee,reducer ... (concentric and eccentric) and high pressure pipe with competitive price and excellent product. Description of ... 304L, 316.etc.2) Applied field: construction upholstery, and industry instruments (fencing, railing,safe doors / windows, gate fittings, inside ...