Steel springboard springboard opposite of Jiangsu Xin Rays steel manufacturers for ribs is also very strict requirements. Marine sand drain springboard springboard construction, steel plates welded one slot every 500-700mm style ribs, ribs middle spot welding method requires soldering joints length must not be less than 15 mm, not less than six joints weld height required 2 mm or more. Welding galvanized steel plate head springboard ends seven joints should be a lot, especially to strengthen the sides of the welding, weld height of 3 mm, because all this will affect the steel springboard compression functions. Company: Jiangsu Rays building components Co., Ltd. Contact: Mr. Zhou 18796779198 0523-87838785 QQ: 2819163822 Alibaba: Jiangsu Rays building components URL: www.xg-js.com www.jsxggj.com The company produces a variety of high quality steel springboard building springboard springboard marine sand drain, steel scaffold boards, etc., are welcome to inquire procurement.